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Finding the Fourth Proportional to 229,591.80, 316,861.20 and 134,129.52

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Solution

The fourth proportional to 229,591.80, 316,861.20 and 134,129.52 is: 185,113.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,591.80 : 316,861.20 = 134,129.52 : x
  2. Step 2: Convert to fraction form
    229,591.80/316,861.20 = 134,129.52/x
  3. Step 3: Cross multiply
    229,591.80x = 316,861.20 × 134,129.52
  4. Step 4: Simplify right side
    229,591.80x = 42,500,440,662.62
  5. Step 5: Solve for x
    x = 42,500,440,662.62/229,591.80
  6. Step 6: Final answer
    x = 185,113.06

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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.