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Finding the Fourth Proportional to 331.83, 457.95 and 243.59

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Solution

The fourth proportional to 331.83, 457.95 and 243.59 is: 336.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    331.83 : 457.95 = 243.59 : x
  2. Step 2: Convert to fraction form
    331.83/457.95 = 243.59/x
  3. Step 3: Cross multiply
    331.83x = 457.95 × 243.59
  4. Step 4: Simplify right side
    331.83x = 111,549.75
  5. Step 5: Solve for x
    x = 111,549.75/331.83
  6. Step 6: Final answer
    x = 336.17

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.