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Finding the Fourth Proportional to 445.47, 667.29 and 363.45

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Solution

The fourth proportional to 445.47, 667.29 and 363.45 is: 544.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.47 : 667.29 = 363.45 : x
  2. Step 2: Convert to fraction form
    445.47/667.29 = 363.45/x
  3. Step 3: Cross multiply
    445.47x = 667.29 × 363.45
  4. Step 4: Simplify right side
    445.47x = 242,526.55
  5. Step 5: Solve for x
    x = 242,526.55/445.47
  6. Step 6: Final answer
    x = 544.43

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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.