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Finding the Fourth Proportional to 452.76, 624.30 and 382.72

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Solution

The fourth proportional to 452.76, 624.30 and 382.72 is: 527.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.76 : 624.30 = 382.72 : x
  2. Step 2: Convert to fraction form
    452.76/624.30 = 382.72/x
  3. Step 3: Cross multiply
    452.76x = 624.30 × 382.72
  4. Step 4: Simplify right side
    452.76x = 238,932.10
  5. Step 5: Solve for x
    x = 238,932.10/452.76
  6. Step 6: Final answer
    x = 527.72

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Find fourth proportional to 226.38, 312.15 and 191.36
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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.