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Finding the Fourth Proportional to 185.60, 277.04 and 137.28

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Solution

The fourth proportional to 185.60, 277.04 and 137.28 is: 204.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.60 : 277.04 = 137.28 : x
  2. Step 2: Convert to fraction form
    185.60/277.04 = 137.28/x
  3. Step 3: Cross multiply
    185.60x = 277.04 × 137.28
  4. Step 4: Simplify right side
    185.60x = 38,032.05
  5. Step 5: Solve for x
    x = 38,032.05/185.60
  6. Step 6: Final answer
    x = 204.91

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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.