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Finding the Fourth Proportional to 185.12, 275.72 and 184.20

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Solution

The fourth proportional to 185.12, 275.72 and 184.20 is: 274.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185.12 : 275.72 = 184.20 : x
  2. Step 2: Convert to fraction form
    185.12/275.72 = 184.20/x
  3. Step 3: Cross multiply
    185.12x = 275.72 × 184.20
  4. Step 4: Simplify right side
    185.12x = 50,787.62
  5. Step 5: Solve for x
    x = 50,787.62/185.12
  6. Step 6: Final answer
    x = 274.35

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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.