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Finding the Fourth Proportional to 277,078.71, 415,618.04 and 127,444.85

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Solution

The fourth proportional to 277,078.71, 415,618.04 and 127,444.85 is: 191,167.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,078.71 : 415,618.04 = 127,444.85 : x
  2. Step 2: Convert to fraction form
    277,078.71/415,618.04 = 127,444.85/x
  3. Step 3: Cross multiply
    277,078.71x = 415,618.04 × 127,444.85
  4. Step 4: Simplify right side
    277,078.71x = 52,968,378,564.18
  5. Step 5: Solve for x
    x = 52,968,378,564.18/277,078.71
  6. Step 6: Final answer
    x = 191,167.26

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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.