Home / 380,983.95-571,435.83-156,368.16

Finding the Fourth Proportional to 380,983.95, 571,435.83 and 156,368.16

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Solution

The fourth proportional to 380,983.95, 571,435.83 and 156,368.16 is: 234,535.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,983.95 : 571,435.83 = 156,368.16 : x
  2. Step 2: Convert to fraction form
    380,983.95/571,435.83 = 156,368.16/x
  3. Step 3: Cross multiply
    380,983.95x = 571,435.83 × 156,368.16
  4. Step 4: Simplify right side
    380,983.95x = 89,354,369,295.17
  5. Step 5: Solve for x
    x = 89,354,369,295.17/380,983.95
  6. Step 6: Final answer
    x = 234,535.78

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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.