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Finding the Fourth Proportional to 622.31, 932.61 and 293.19

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Solution

The fourth proportional to 622.31, 932.61 and 293.19 is: 439.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.31 : 932.61 = 293.19 : x
  2. Step 2: Convert to fraction form
    622.31/932.61 = 293.19/x
  3. Step 3: Cross multiply
    622.31x = 932.61 × 293.19
  4. Step 4: Simplify right side
    622.31x = 273,437.40
  5. Step 5: Solve for x
    x = 273,437.40/622.31
  6. Step 6: Final answer
    x = 439.39

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Double scale
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Similar ratio
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1.5x scale

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.