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Finding the Fourth Proportional to 251.76, 348.78 and 246.08

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Solution

The fourth proportional to 251.76, 348.78 and 246.08 is: 340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.76 : 348.78 = 246.08 : x
  2. Step 2: Convert to fraction form
    251.76/348.78 = 246.08/x
  3. Step 3: Cross multiply
    251.76x = 348.78 × 246.08
  4. Step 4: Simplify right side
    251.76x = 85,827.78
  5. Step 5: Solve for x
    x = 85,827.78/251.76
  6. Step 6: Final answer
    x = 340.91

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.