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Finding the Fourth Proportional to 229,108.92, 316,172.10 and 127,134.78

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Solution

The fourth proportional to 229,108.92, 316,172.10 and 127,134.78 is: 175,446.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,108.92 : 316,172.10 = 127,134.78 : x
  2. Step 2: Convert to fraction form
    229,108.92/316,172.10 = 127,134.78/x
  3. Step 3: Cross multiply
    229,108.92x = 316,172.10 × 127,134.78
  4. Step 4: Simplify right side
    229,108.92x = 40,196,470,375.64
  5. Step 5: Solve for x
    x = 40,196,470,375.64/229,108.92
  6. Step 6: Final answer
    x = 175,446.99

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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.