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Finding the Fourth Proportional to 227,356, 313,747.12 and 125,390.88

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Solution

The fourth proportional to 227,356, 313,747.12 and 125,390.88 is: 173,037.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,356 : 313,747.12 = 125,390.88 : x
  2. Step 2: Convert to fraction form
    227,356/313,747.12 = 125,390.88/x
  3. Step 3: Cross multiply
    227,356x = 313,747.12 × 125,390.88
  4. Step 4: Simplify right side
    227,356x = 39,341,027,474.27
  5. Step 5: Solve for x
    x = 39,341,027,474.27/227,356
  6. Step 6: Final answer
    x = 173,037.12

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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.