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Finding the Fourth Proportional to 226,490.82, 312,564.78 and 124,520.58

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Solution

The fourth proportional to 226,490.82, 312,564.78 and 124,520.58 is: 171,842.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,490.82 : 312,564.78 = 124,520.58 : x
  2. Step 2: Convert to fraction form
    226,490.82/312,564.78 = 124,520.58/x
  3. Step 3: Cross multiply
    226,490.82x = 312,564.78 × 124,520.58
  4. Step 4: Simplify right side
    226,490.82x = 38,920,747,693.17
  5. Step 5: Solve for x
    x = 38,920,747,693.17/226,490.82
  6. Step 6: Final answer
    x = 171,842.50

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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.