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Finding the Fourth Proportional to 445.17, 667.29 and 282.96

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Solution

The fourth proportional to 445.17, 667.29 and 282.96 is: 424.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.17 : 667.29 = 282.96 : x
  2. Step 2: Convert to fraction form
    445.17/667.29 = 282.96/x
  3. Step 3: Cross multiply
    445.17x = 667.29 × 282.96
  4. Step 4: Simplify right side
    445.17x = 188,816.38
  5. Step 5: Solve for x
    x = 188,816.38/445.17
  6. Step 6: Final answer
    x = 424.14

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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.