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Finding the Fourth Proportional to 185.50, 276.32 and 174.16

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Solution

The fourth proportional to 185.50, 276.32 and 174.16 is: 259.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.50 : 276.32 = 174.16 : x
  2. Step 2: Convert to fraction form
    185.50/276.32 = 174.16/x
  3. Step 3: Cross multiply
    185.50x = 276.32 × 174.16
  4. Step 4: Simplify right side
    185.50x = 48,123.89
  5. Step 5: Solve for x
    x = 48,123.89/185.50
  6. Step 6: Final answer
    x = 259.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.