Home / 438,322.12-657,088.44-157,642

Finding the Fourth Proportional to 438,322.12, 657,088.44 and 157,642

Calculator

Solution

The fourth proportional to 438,322.12, 657,088.44 and 157,642 is: 236,321.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,322.12 : 657,088.44 = 157,642 : x
  2. Step 2: Convert to fraction form
    438,322.12/657,088.44 = 157,642/x
  3. Step 3: Cross multiply
    438,322.12x = 657,088.44 × 157,642
  4. Step 4: Simplify right side
    438,322.12x = 103,584,735,858.48
  5. Step 5: Solve for x
    x = 103,584,735,858.48/438,322.12
  6. Step 6: Final answer
    x = 236,321.03

Related Problems

Find fourth proportional to 219,161.06, 328,544.22 and 78,821
Half scale
Find fourth proportional to 876,644.24, 1,314,176.88 and 315,284
Double scale
Find fourth proportional to 438,323.12, 657,089.94 and 157,643
Similar ratio
Find fourth proportional to 657,483.18, 985,632.66 and 236,463
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.