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Finding the Fourth Proportional to 632.50, 948.75 and 247.75

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Solution

The fourth proportional to 632.50, 948.75 and 247.75 is: 371.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.50 : 948.75 = 247.75 : x
  2. Step 2: Convert to fraction form
    632.50/948.75 = 247.75/x
  3. Step 3: Cross multiply
    632.50x = 948.75 × 247.75
  4. Step 4: Simplify right side
    632.50x = 235,052.81
  5. Step 5: Solve for x
    x = 235,052.81/632.50
  6. Step 6: Final answer
    x = 371.63

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Double scale
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Similar ratio
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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.