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Finding the Fourth Proportional to 314.73, 471.75 and 132.07

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Solution

The fourth proportional to 314.73, 471.75 and 132.07 is: 197.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.73 : 471.75 = 132.07 : x
  2. Step 2: Convert to fraction form
    314.73/471.75 = 132.07/x
  3. Step 3: Cross multiply
    314.73x = 471.75 × 132.07
  4. Step 4: Simplify right side
    314.73x = 62,304.02
  5. Step 5: Solve for x
    x = 62,304.02/314.73
  6. Step 6: Final answer
    x = 197.96

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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.