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Finding the Fourth Proportional to 315,425.20, 471,985.80 and 232,481.20

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Solution

The fourth proportional to 315,425.20, 471,985.80 and 232,481.20 is: 347,872.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,425.20 : 471,985.80 = 232,481.20 : x
  2. Step 2: Convert to fraction form
    315,425.20/471,985.80 = 232,481.20/x
  3. Step 3: Cross multiply
    315,425.20x = 471,985.80 × 232,481.20
  4. Step 4: Simplify right side
    315,425.20x = 109,727,825,166.96
  5. Step 5: Solve for x
    x = 109,727,825,166.96/315,425.20
  6. Step 6: Final answer
    x = 347,872.73

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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.