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Finding the Fourth Proportional to 185.31, 277.47 and 94.05

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Solution

The fourth proportional to 185.31, 277.47 and 94.05 is: 140.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.31 : 277.47 = 94.05 : x
  2. Step 2: Convert to fraction form
    185.31/277.47 = 94.05/x
  3. Step 3: Cross multiply
    185.31x = 277.47 × 94.05
  4. Step 4: Simplify right side
    185.31x = 26,096.05
  5. Step 5: Solve for x
    x = 26,096.05/185.31
  6. Step 6: Final answer
    x = 140.82

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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.