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Finding the Fourth Proportional to 277.30, 382.69 and 152.97

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Solution

The fourth proportional to 277.30, 382.69 and 152.97 is: 211.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.30 : 382.69 = 152.97 : x
  2. Step 2: Convert to fraction form
    277.30/382.69 = 152.97/x
  3. Step 3: Cross multiply
    277.30x = 382.69 × 152.97
  4. Step 4: Simplify right side
    277.30x = 58,540.09
  5. Step 5: Solve for x
    x = 58,540.09/277.30
  6. Step 6: Final answer
    x = 211.11

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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.