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Finding the Fourth Proportional to 545.25, 753.07 and 370.29

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Solution

The fourth proportional to 545.25, 753.07 and 370.29 is: 511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.25 : 753.07 = 370.29 : x
  2. Step 2: Convert to fraction form
    545.25/753.07 = 370.29/x
  3. Step 3: Cross multiply
    545.25x = 753.07 × 370.29
  4. Step 4: Simplify right side
    545.25x = 278,852.44
  5. Step 5: Solve for x
    x = 278,852.44/545.25
  6. Step 6: Final answer
    x = 511.42

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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.