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Finding the Fourth Proportional to 324,808.96, 487,253.04 and 137,757.28

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Solution

The fourth proportional to 324,808.96, 487,253.04 and 137,757.28 is: 206,652.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,808.96 : 487,253.04 = 137,757.28 : x
  2. Step 2: Convert to fraction form
    324,808.96/487,253.04 = 137,757.28/x
  3. Step 3: Cross multiply
    324,808.96x = 487,253.04 × 137,757.28
  4. Step 4: Simplify right side
    324,808.96x = 67,122,653,462.13
  5. Step 5: Solve for x
    x = 67,122,653,462.13/324,808.96
  6. Step 6: Final answer
    x = 206,652.72

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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.