Home / 405,228.82-559,187.76-223,939

Finding the Fourth Proportional to 405,228.82, 559,187.76 and 223,939

Calculator

Solution

The fourth proportional to 405,228.82, 559,187.76 and 223,939 is: 309,020.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,228.82 : 559,187.76 = 223,939 : x
  2. Step 2: Convert to fraction form
    405,228.82/559,187.76 = 223,939/x
  3. Step 3: Cross multiply
    405,228.82x = 559,187.76 × 223,939
  4. Step 4: Simplify right side
    405,228.82x = 125,223,947,786.64
  5. Step 5: Solve for x
    x = 125,223,947,786.64/405,228.82
  6. Step 6: Final answer
    x = 309,020.34

Related Problems

Find fourth proportional to 202,614.41, 279,593.88 and 111,969.50
Half scale
Find fourth proportional to 810,457.64, 1,118,375.52 and 447,878
Double scale
Find fourth proportional to 405,229.82, 559,189.14 and 223,940
Similar ratio
Find fourth proportional to 607,843.23, 838,781.64 and 335,908.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.