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Finding the Fourth Proportional to 331.11, 498.54 and 292.83

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Solution

The fourth proportional to 331.11, 498.54 and 292.83 is: 440.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331.11 : 498.54 = 292.83 : x
  2. Step 2: Convert to fraction form
    331.11/498.54 = 292.83/x
  3. Step 3: Cross multiply
    331.11x = 498.54 × 292.83
  4. Step 4: Simplify right side
    331.11x = 145,987.47
  5. Step 5: Solve for x
    x = 145,987.47/331.11
  6. Step 6: Final answer
    x = 440.90

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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.