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Finding the Fourth Proportional to 641.41, 962.14 and 251.44

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Solution

The fourth proportional to 641.41, 962.14 and 251.44 is: 377.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    641.41 : 962.14 = 251.44 : x
  2. Step 2: Convert to fraction form
    641.41/962.14 = 251.44/x
  3. Step 3: Cross multiply
    641.41x = 962.14 × 251.44
  4. Step 4: Simplify right side
    641.41x = 241,920.48
  5. Step 5: Solve for x
    x = 241,920.48/641.41
  6. Step 6: Final answer
    x = 377.17

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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.