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Finding the Fourth Proportional to 624.27, 861.54 and 344.51

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Solution

The fourth proportional to 624.27, 861.54 and 344.51 is: 475.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.27 : 861.54 = 344.51 : x
  2. Step 2: Convert to fraction form
    624.27/861.54 = 344.51/x
  3. Step 3: Cross multiply
    624.27x = 861.54 × 344.51
  4. Step 4: Simplify right side
    624.27x = 296,803.12
  5. Step 5: Solve for x
    x = 296,803.12/624.27
  6. Step 6: Final answer
    x = 475.44

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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.