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Finding the Fourth Proportional to 332.79, 500.15 and 308.31

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Solution

The fourth proportional to 332.79, 500.15 and 308.31 is: 463.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    332.79 : 500.15 = 308.31 : x
  2. Step 2: Convert to fraction form
    332.79/500.15 = 308.31/x
  3. Step 3: Cross multiply
    332.79x = 500.15 × 308.31
  4. Step 4: Simplify right side
    332.79x = 154,199.70
  5. Step 5: Solve for x
    x = 154,199.70/332.79
  6. Step 6: Final answer
    x = 463.35

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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.