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Finding the Fourth Proportional to 291.52, 402.33 and 181.05

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Solution

The fourth proportional to 291.52, 402.33 and 181.05 is: 249.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    291.52 : 402.33 = 181.05 : x
  2. Step 2: Convert to fraction form
    291.52/402.33 = 181.05/x
  3. Step 3: Cross multiply
    291.52x = 402.33 × 181.05
  4. Step 4: Simplify right side
    291.52x = 72,841.85
  5. Step 5: Solve for x
    x = 72,841.85/291.52
  6. Step 6: Final answer
    x = 249.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.