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Finding the Fourth Proportional to 355.34, 534.92 and 247.88

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Solution

The fourth proportional to 355.34, 534.92 and 247.88 is: 373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.34 : 534.92 = 247.88 : x
  2. Step 2: Convert to fraction form
    355.34/534.92 = 247.88/x
  3. Step 3: Cross multiply
    355.34x = 534.92 × 247.88
  4. Step 4: Simplify right side
    355.34x = 132,595.97
  5. Step 5: Solve for x
    x = 132,595.97/355.34
  6. Step 6: Final answer
    x = 373.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.