Home / 284,175.28-392,155.92-155,109.52

Finding the Fourth Proportional to 284,175.28, 392,155.92 and 155,109.52

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Solution

The fourth proportional to 284,175.28, 392,155.92 and 155,109.52 is: 214,047.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,175.28 : 392,155.92 = 155,109.52 : x
  2. Step 2: Convert to fraction form
    284,175.28/392,155.92 = 155,109.52/x
  3. Step 3: Cross multiply
    284,175.28x = 392,155.92 × 155,109.52
  4. Step 4: Simplify right side
    284,175.28x = 60,827,116,516.36
  5. Step 5: Solve for x
    x = 60,827,116,516.36/284,175.28
  6. Step 6: Final answer
    x = 214,047.88

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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.