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Finding the Fourth Proportional to 297.88, 443.04 and 291.73

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Solution

The fourth proportional to 297.88, 443.04 and 291.73 is: 433.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.88 : 443.04 = 291.73 : x
  2. Step 2: Convert to fraction form
    297.88/443.04 = 291.73/x
  3. Step 3: Cross multiply
    297.88x = 443.04 × 291.73
  4. Step 4: Simplify right side
    297.88x = 129,248.06
  5. Step 5: Solve for x
    x = 129,248.06/297.88
  6. Step 6: Final answer
    x = 433.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.