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Finding the Fourth Proportional to 545.24, 753.05 and 359.56

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Solution

The fourth proportional to 545.24, 753.05 and 359.56 is: 496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.24 : 753.05 = 359.56 : x
  2. Step 2: Convert to fraction form
    545.24/753.05 = 359.56/x
  3. Step 3: Cross multiply
    545.24x = 753.05 × 359.56
  4. Step 4: Simplify right side
    545.24x = 270,766.66
  5. Step 5: Solve for x
    x = 270,766.66/545.24
  6. Step 6: Final answer
    x = 496.60

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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.