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Finding the Fourth Proportional to 247.46, 340.90 and 185.18

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Solution

The fourth proportional to 247.46, 340.90 and 185.18 is: 255.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.46 : 340.90 = 185.18 : x
  2. Step 2: Convert to fraction form
    247.46/340.90 = 185.18/x
  3. Step 3: Cross multiply
    247.46x = 340.90 × 185.18
  4. Step 4: Simplify right side
    247.46x = 63,125.69
  5. Step 5: Solve for x
    x = 63,125.69/247.46
  6. Step 6: Final answer
    x = 255.10

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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.