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Finding the Fourth Proportional to 663.20, 994.72 and 176.29

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Solution

The fourth proportional to 663.20, 994.72 and 176.29 is: 264.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    663.20 : 994.72 = 176.29 : x
  2. Step 2: Convert to fraction form
    663.20/994.72 = 176.29/x
  3. Step 3: Cross multiply
    663.20x = 994.72 × 176.29
  4. Step 4: Simplify right side
    663.20x = 175,354.22
  5. Step 5: Solve for x
    x = 175,354.22/663.20
  6. Step 6: Final answer
    x = 264.41

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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.