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Finding the Fourth Proportional to 247.29, 341.19 and 154.08

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Solution

The fourth proportional to 247.29, 341.19 and 154.08 is: 212.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.29 : 341.19 = 154.08 : x
  2. Step 2: Convert to fraction form
    247.29/341.19 = 154.08/x
  3. Step 3: Cross multiply
    247.29x = 341.19 × 154.08
  4. Step 4: Simplify right side
    247.29x = 52,570.56
  5. Step 5: Solve for x
    x = 52,570.56/247.29
  6. Step 6: Final answer
    x = 212.59

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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.