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Finding the Fourth Proportional to 227,488.89, 313,937.91 and 125,518.80

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Solution

The fourth proportional to 227,488.89, 313,937.91 and 125,518.80 is: 173,217.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,488.89 : 313,937.91 = 125,518.80 : x
  2. Step 2: Convert to fraction form
    227,488.89/313,937.91 = 125,518.80/x
  3. Step 3: Cross multiply
    227,488.89x = 313,937.91 × 125,518.80
  4. Step 4: Simplify right side
    227,488.89x = 39,405,109,737.71
  5. Step 5: Solve for x
    x = 39,405,109,737.71/227,488.89
  6. Step 6: Final answer
    x = 173,217.73

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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.