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Finding the Fourth Proportional to 545.03, 752.13 and 296.34

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Solution

The fourth proportional to 545.03, 752.13 and 296.34 is: 408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.03 : 752.13 = 296.34 : x
  2. Step 2: Convert to fraction form
    545.03/752.13 = 296.34/x
  3. Step 3: Cross multiply
    545.03x = 752.13 × 296.34
  4. Step 4: Simplify right side
    545.03x = 222,886.20
  5. Step 5: Solve for x
    x = 222,886.20/545.03
  6. Step 6: Final answer
    x = 408.94

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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.