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Finding the Fourth Proportional to 632.68, 947.94 and 344.32

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Solution

The fourth proportional to 632.68, 947.94 and 344.32 is: 515.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.68 : 947.94 = 344.32 : x
  2. Step 2: Convert to fraction form
    632.68/947.94 = 344.32/x
  3. Step 3: Cross multiply
    632.68x = 947.94 × 344.32
  4. Step 4: Simplify right side
    632.68x = 326,394.70
  5. Step 5: Solve for x
    x = 326,394.70/632.68
  6. Step 6: Final answer
    x = 515.89

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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.