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Finding the Fourth Proportional to 180.57, 270.89 and 58.87

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Solution

The fourth proportional to 180.57, 270.89 and 58.87 is: 88.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.57 : 270.89 = 58.87 : x
  2. Step 2: Convert to fraction form
    180.57/270.89 = 58.87/x
  3. Step 3: Cross multiply
    180.57x = 270.89 × 58.87
  4. Step 4: Simplify right side
    180.57x = 15,947.89
  5. Step 5: Solve for x
    x = 15,947.89/180.57
  6. Step 6: Final answer
    x = 88.32

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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.