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Finding the Fourth Proportional to 226,676, 312,812.88 and 126,071.84

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Solution

The fourth proportional to 226,676, 312,812.88 and 126,071.84 is: 173,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,676 : 312,812.88 = 126,071.84 : x
  2. Step 2: Convert to fraction form
    226,676/312,812.88 = 126,071.84/x
  3. Step 3: Cross multiply
    226,676x = 312,812.88 × 126,071.84
  4. Step 4: Simplify right side
    226,676x = 39,436,895,357.30
  5. Step 5: Solve for x
    x = 39,436,895,357.30/226,676
  6. Step 6: Final answer
    x = 173,979.14

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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.