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Finding the Fourth Proportional to 179.95, 269.96 and 58.20

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Solution

The fourth proportional to 179.95, 269.96 and 58.20 is: 87.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.95 : 269.96 = 58.20 : x
  2. Step 2: Convert to fraction form
    179.95/269.96 = 58.20/x
  3. Step 3: Cross multiply
    179.95x = 269.96 × 58.20
  4. Step 4: Simplify right side
    179.95x = 15,712.21
  5. Step 5: Solve for x
    x = 15,712.21/179.95
  6. Step 6: Final answer
    x = 87.32

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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.