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Finding the Fourth Proportional to 545.22, 752.10 and 323.95

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Solution

The fourth proportional to 545.22, 752.10 and 323.95 is: 446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.22 : 752.10 = 323.95 : x
  2. Step 2: Convert to fraction form
    545.22/752.10 = 323.95/x
  3. Step 3: Cross multiply
    545.22x = 752.10 × 323.95
  4. Step 4: Simplify right side
    545.22x = 243,642.80
  5. Step 5: Solve for x
    x = 243,642.80/545.22
  6. Step 6: Final answer
    x = 446.87

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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.