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Finding the Fourth Proportional to 226,294.88, 312,349.78 and 129,552.93

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Solution

The fourth proportional to 226,294.88, 312,349.78 and 129,552.93 is: 178,819.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,294.88 : 312,349.78 = 129,552.93 : x
  2. Step 2: Convert to fraction form
    226,294.88/312,349.78 = 129,552.93/x
  3. Step 3: Cross multiply
    226,294.88x = 312,349.78 × 129,552.93
  4. Step 4: Simplify right side
    226,294.88x = 40,465,829,183.86
  5. Step 5: Solve for x
    x = 40,465,829,183.86/226,294.88
  6. Step 6: Final answer
    x = 178,819.02

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1.5x scale

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.