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Finding the Fourth Proportional to 632.42, 948.62 and 267.20

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Solution

The fourth proportional to 632.42, 948.62 and 267.20 is: 400.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.42 : 948.62 = 267.20 : x
  2. Step 2: Convert to fraction form
    632.42/948.62 = 267.20/x
  3. Step 3: Cross multiply
    632.42x = 948.62 × 267.20
  4. Step 4: Simplify right side
    632.42x = 253,465.18
  5. Step 5: Solve for x
    x = 253,465.18/632.42
  6. Step 6: Final answer
    x = 400.79

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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.