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Finding the Fourth Proportional to 454.96, 628.05 and 372.95

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Solution

The fourth proportional to 454.96, 628.05 and 372.95 is: 514.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.96 : 628.05 = 372.95 : x
  2. Step 2: Convert to fraction form
    454.96/628.05 = 372.95/x
  3. Step 3: Cross multiply
    454.96x = 628.05 × 372.95
  4. Step 4: Simplify right side
    454.96x = 234,227.64
  5. Step 5: Solve for x
    x = 234,227.64/454.96
  6. Step 6: Final answer
    x = 514.83

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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.