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Finding the Fourth Proportional to 634.35, 951.03 and 325.86

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Solution

The fourth proportional to 634.35, 951.03 and 325.86 is: 488.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    634.35 : 951.03 = 325.86 : x
  2. Step 2: Convert to fraction form
    634.35/951.03 = 325.86/x
  3. Step 3: Cross multiply
    634.35x = 951.03 × 325.86
  4. Step 4: Simplify right side
    634.35x = 309,902.64
  5. Step 5: Solve for x
    x = 309,902.64/634.35
  6. Step 6: Final answer
    x = 488.54

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Half scale
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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.