Home / 284,179.91-392,177.78-155,126.04

Finding the Fourth Proportional to 284,179.91, 392,177.78 and 155,126.04

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Solution

The fourth proportional to 284,179.91, 392,177.78 and 155,126.04 is: 214,079.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,179.91 : 392,177.78 = 155,126.04 : x
  2. Step 2: Convert to fraction form
    284,179.91/392,177.78 = 155,126.04/x
  3. Step 3: Cross multiply
    284,179.91x = 392,177.78 × 155,126.04
  4. Step 4: Simplify right side
    284,179.91x = 60,836,984,213.74
  5. Step 5: Solve for x
    x = 60,836,984,213.74/284,179.91
  6. Step 6: Final answer
    x = 214,079.11

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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.