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Finding the Fourth Proportional to 463.65, 638.46 and 332.43

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Solution

The fourth proportional to 463.65, 638.46 and 332.43 is: 457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    463.65 : 638.46 = 332.43 : x
  2. Step 2: Convert to fraction form
    463.65/638.46 = 332.43/x
  3. Step 3: Cross multiply
    463.65x = 638.46 × 332.43
  4. Step 4: Simplify right side
    463.65x = 212,243.26
  5. Step 5: Solve for x
    x = 212,243.26/463.65
  6. Step 6: Final answer
    x = 457.77

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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.