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Finding the Fourth Proportional to 247.10, 340.68 and 181.49

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Solution

The fourth proportional to 247.10, 340.68 and 181.49 is: 250.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.10 : 340.68 = 181.49 : x
  2. Step 2: Convert to fraction form
    247.10/340.68 = 181.49/x
  3. Step 3: Cross multiply
    247.10x = 340.68 × 181.49
  4. Step 4: Simplify right side
    247.10x = 61,828.31
  5. Step 5: Solve for x
    x = 61,828.31/247.10
  6. Step 6: Final answer
    x = 250.22

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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.