Home / 376,452.28-519,356-215,220.72

Finding the Fourth Proportional to 376,452.28, 519,356 and 215,220.72

Calculator

Solution

The fourth proportional to 376,452.28, 519,356 and 215,220.72 is: 296,919.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,452.28 : 519,356 = 215,220.72 : x
  2. Step 2: Convert to fraction form
    376,452.28/519,356 = 215,220.72/x
  3. Step 3: Cross multiply
    376,452.28x = 519,356 × 215,220.72
  4. Step 4: Simplify right side
    376,452.28x = 111,776,172,256.32
  5. Step 5: Solve for x
    x = 111,776,172,256.32/376,452.28
  6. Step 6: Final answer
    x = 296,919.90

Related Problems

Find fourth proportional to 188,226.14, 259,678 and 107,610.36
Half scale
Find fourth proportional to 752,904.56, 1,038,712 and 430,441.44
Double scale
Find fourth proportional to 376,453.28, 519,357.38 and 215,221.72
Similar ratio
Find fourth proportional to 564,678.42, 779,034 and 322,831.08
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.