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Finding the Fourth Proportional to 335,474.28, 503,211.42 and 86,156.52

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Solution

The fourth proportional to 335,474.28, 503,211.42 and 86,156.52 is: 129,234.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,474.28 : 503,211.42 = 86,156.52 : x
  2. Step 2: Convert to fraction form
    335,474.28/503,211.42 = 86,156.52/x
  3. Step 3: Cross multiply
    335,474.28x = 503,211.42 × 86,156.52
  4. Step 4: Simplify right side
    335,474.28x = 43,354,944,771.46
  5. Step 5: Solve for x
    x = 43,354,944,771.46/335,474.28
  6. Step 6: Final answer
    x = 129,234.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.