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Finding the Fourth Proportional to 676.06, 932.43 and 443.14

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Solution

The fourth proportional to 676.06, 932.43 and 443.14 is: 611.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.06 : 932.43 = 443.14 : x
  2. Step 2: Convert to fraction form
    676.06/932.43 = 443.14/x
  3. Step 3: Cross multiply
    676.06x = 932.43 × 443.14
  4. Step 4: Simplify right side
    676.06x = 413,197.03
  5. Step 5: Solve for x
    x = 413,197.03/676.06
  6. Step 6: Final answer
    x = 611.18

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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.