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Finding the Fourth Proportional to 624.01, 861.12 and 344.25

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Solution

The fourth proportional to 624.01, 861.12 and 344.25 is: 475.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.01 : 861.12 = 344.25 : x
  2. Step 2: Convert to fraction form
    624.01/861.12 = 344.25/x
  3. Step 3: Cross multiply
    624.01x = 861.12 × 344.25
  4. Step 4: Simplify right side
    624.01x = 296,440.56
  5. Step 5: Solve for x
    x = 296,440.56/624.01
  6. Step 6: Final answer
    x = 475.06

Related Problems

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.