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Finding the Fourth Proportional to 279,274.38, 415,753.10 and 277,613.88

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Solution

The fourth proportional to 279,274.38, 415,753.10 and 277,613.88 is: 413,281.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,274.38 : 415,753.10 = 277,613.88 : x
  2. Step 2: Convert to fraction form
    279,274.38/415,753.10 = 277,613.88/x
  3. Step 3: Cross multiply
    279,274.38x = 415,753.10 × 277,613.88
  4. Step 4: Simplify right side
    279,274.38x = 115,418,829,824.96
  5. Step 5: Solve for x
    x = 115,418,829,824.96/279,274.38
  6. Step 6: Final answer
    x = 413,281.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.