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Finding the Fourth Proportional to 632.38, 948.71 and 247.63

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Solution

The fourth proportional to 632.38, 948.71 and 247.63 is: 371.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.38 : 948.71 = 247.63 : x
  2. Step 2: Convert to fraction form
    632.38/948.71 = 247.63/x
  3. Step 3: Cross multiply
    632.38x = 948.71 × 247.63
  4. Step 4: Simplify right side
    632.38x = 234,929.06
  5. Step 5: Solve for x
    x = 234,929.06/632.38
  6. Step 6: Final answer
    x = 371.50

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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.