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Finding the Fourth Proportional to 363.52, 545.64 and 266.32

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Solution

The fourth proportional to 363.52, 545.64 and 266.32 is: 399.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    363.52 : 545.64 = 266.32 : x
  2. Step 2: Convert to fraction form
    363.52/545.64 = 266.32/x
  3. Step 3: Cross multiply
    363.52x = 545.64 × 266.32
  4. Step 4: Simplify right side
    363.52x = 145,314.84
  5. Step 5: Solve for x
    x = 145,314.84/363.52
  6. Step 6: Final answer
    x = 399.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.