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Finding the Fourth Proportional to 452.92, 624.88 and 275.80

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Solution

The fourth proportional to 452.92, 624.88 and 275.80 is: 380.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.92 : 624.88 = 275.80 : x
  2. Step 2: Convert to fraction form
    452.92/624.88 = 275.80/x
  3. Step 3: Cross multiply
    452.92x = 624.88 × 275.80
  4. Step 4: Simplify right side
    452.92x = 172,341.90
  5. Step 5: Solve for x
    x = 172,341.90/452.92
  6. Step 6: Final answer
    x = 380.51

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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.