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Finding the Fourth Proportional to 184.98, 254.85 and 153.85

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Solution

The fourth proportional to 184.98, 254.85 and 153.85 is: 211.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    184.98 : 254.85 = 153.85 : x
  2. Step 2: Convert to fraction form
    184.98/254.85 = 153.85/x
  3. Step 3: Cross multiply
    184.98x = 254.85 × 153.85
  4. Step 4: Simplify right side
    184.98x = 39,207.94
  5. Step 5: Solve for x
    x = 39,207.94/184.98
  6. Step 6: Final answer
    x = 211.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.