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Finding the Fourth Proportional to 284,057.04, 392,001.12 and 156,741.12

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Solution

The fourth proportional to 284,057.04, 392,001.12 and 156,741.12 is: 216,304.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,057.04 : 392,001.12 = 156,741.12 : x
  2. Step 2: Convert to fraction form
    284,057.04/392,001.12 = 156,741.12/x
  3. Step 3: Cross multiply
    284,057.04x = 392,001.12 × 156,741.12
  4. Step 4: Simplify right side
    284,057.04x = 61,442,694,590.05
  5. Step 5: Solve for x
    x = 61,442,694,590.05/284,057.04
  6. Step 6: Final answer
    x = 216,304.07

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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.