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Finding the Fourth Proportional to 247.17, 340.50 and 235.45

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Solution

The fourth proportional to 247.17, 340.50 and 235.45 is: 324.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.17 : 340.50 = 235.45 : x
  2. Step 2: Convert to fraction form
    247.17/340.50 = 235.45/x
  3. Step 3: Cross multiply
    247.17x = 340.50 × 235.45
  4. Step 4: Simplify right side
    247.17x = 80,170.73
  5. Step 5: Solve for x
    x = 80,170.73/247.17
  6. Step 6: Final answer
    x = 324.35

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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.