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Finding the Fourth Proportional to 545.07, 752.82 and 370.11

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Solution

The fourth proportional to 545.07, 752.82 and 370.11 is: 511.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.07 : 752.82 = 370.11 : x
  2. Step 2: Convert to fraction form
    545.07/752.82 = 370.11/x
  3. Step 3: Cross multiply
    545.07x = 752.82 × 370.11
  4. Step 4: Simplify right side
    545.07x = 278,626.21
  5. Step 5: Solve for x
    x = 278,626.21/545.07
  6. Step 6: Final answer
    x = 511.18

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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.