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Finding the Fourth Proportional to 253.71, 348.11 and 246.82

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Solution

The fourth proportional to 253.71, 348.11 and 246.82 is: 338.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.71 : 348.11 = 246.82 : x
  2. Step 2: Convert to fraction form
    253.71/348.11 = 246.82/x
  3. Step 3: Cross multiply
    253.71x = 348.11 × 246.82
  4. Step 4: Simplify right side
    253.71x = 85,920.51
  5. Step 5: Solve for x
    x = 85,920.51/253.71
  6. Step 6: Final answer
    x = 338.66

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.