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Finding the Fourth Proportional to 452.56, 624.04 and 321.52

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Solution

The fourth proportional to 452.56, 624.04 and 321.52 is: 443.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.56 : 624.04 = 321.52 : x
  2. Step 2: Convert to fraction form
    452.56/624.04 = 321.52/x
  3. Step 3: Cross multiply
    452.56x = 624.04 × 321.52
  4. Step 4: Simplify right side
    452.56x = 200,641.34
  5. Step 5: Solve for x
    x = 200,641.34/452.56
  6. Step 6: Final answer
    x = 443.35

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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.