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Finding the Fourth Proportional to 632.79, 947.63 and 372.14

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Solution

The fourth proportional to 632.79, 947.63 and 372.14 is: 557.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.79 : 947.63 = 372.14 : x
  2. Step 2: Convert to fraction form
    632.79/947.63 = 372.14/x
  3. Step 3: Cross multiply
    632.79x = 947.63 × 372.14
  4. Step 4: Simplify right side
    632.79x = 352,644.43
  5. Step 5: Solve for x
    x = 352,644.43/632.79
  6. Step 6: Final answer
    x = 557.29

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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.