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Finding the Fourth Proportional to 182.85, 274.36 and 99.49

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Solution

The fourth proportional to 182.85, 274.36 and 99.49 is: 149.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.85 : 274.36 = 99.49 : x
  2. Step 2: Convert to fraction form
    182.85/274.36 = 99.49/x
  3. Step 3: Cross multiply
    182.85x = 274.36 × 99.49
  4. Step 4: Simplify right side
    182.85x = 27,294.89
  5. Step 5: Solve for x
    x = 27,294.89/182.85
  6. Step 6: Final answer
    x = 149.27

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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.