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Finding the Fourth Proportional to 297.74, 446.51 and 115.04

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Solution

The fourth proportional to 297.74, 446.51 and 115.04 is: 172.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.74 : 446.51 = 115.04 : x
  2. Step 2: Convert to fraction form
    297.74/446.51 = 115.04/x
  3. Step 3: Cross multiply
    297.74x = 446.51 × 115.04
  4. Step 4: Simplify right side
    297.74x = 51,367.91
  5. Step 5: Solve for x
    x = 51,367.91/297.74
  6. Step 6: Final answer
    x = 172.52

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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.