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Finding the Fourth Proportional to 437.18, 655.90 and 363.66

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Solution

The fourth proportional to 437.18, 655.90 and 363.66 is: 545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.18 : 655.90 = 363.66 : x
  2. Step 2: Convert to fraction form
    437.18/655.90 = 363.66/x
  3. Step 3: Cross multiply
    437.18x = 655.90 × 363.66
  4. Step 4: Simplify right side
    437.18x = 238,526.76
  5. Step 5: Solve for x
    x = 238,526.76/437.18
  6. Step 6: Final answer
    x = 545.60

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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.