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Finding the Fourth Proportional to 487.98, 732.06 and 179.91

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Solution

The fourth proportional to 487.98, 732.06 and 179.91 is: 269.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    487.98 : 732.06 = 179.91 : x
  2. Step 2: Convert to fraction form
    487.98/732.06 = 179.91/x
  3. Step 3: Cross multiply
    487.98x = 732.06 × 179.91
  4. Step 4: Simplify right side
    487.98x = 131,704.91
  5. Step 5: Solve for x
    x = 131,704.91/487.98
  6. Step 6: Final answer
    x = 269.90

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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.