Home / 284,616.60-392,772.12-155,557.68

Finding the Fourth Proportional to 284,616.60, 392,772.12 and 155,557.68

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Solution

The fourth proportional to 284,616.60, 392,772.12 and 155,557.68 is: 214,670.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,616.60 : 392,772.12 = 155,557.68 : x
  2. Step 2: Convert to fraction form
    284,616.60/392,772.12 = 155,557.68/x
  3. Step 3: Cross multiply
    284,616.60x = 392,772.12 × 155,557.68
  4. Step 4: Simplify right side
    284,616.60x = 61,098,719,755.88
  5. Step 5: Solve for x
    x = 61,098,719,755.88/284,616.60
  6. Step 6: Final answer
    x = 214,670.26

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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.