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Finding the Fourth Proportional to 277,073.13, 415,609.69 and 127,439.27

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Solution

The fourth proportional to 277,073.13, 415,609.69 and 127,439.27 is: 191,158.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,073.13 : 415,609.69 = 127,439.27 : x
  2. Step 2: Convert to fraction form
    277,073.13/415,609.69 = 127,439.27/x
  3. Step 3: Cross multiply
    277,073.13x = 415,609.69 × 127,439.27
  4. Step 4: Simplify right side
    277,073.13x = 52,964,995,498.53
  5. Step 5: Solve for x
    x = 52,964,995,498.53/277,073.13
  6. Step 6: Final answer
    x = 191,158.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.