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Finding the Fourth Proportional to 243.83, 336.31 and 170.17

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Solution

The fourth proportional to 243.83, 336.31 and 170.17 is: 234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.83 : 336.31 = 170.17 : x
  2. Step 2: Convert to fraction form
    243.83/336.31 = 170.17/x
  3. Step 3: Cross multiply
    243.83x = 336.31 × 170.17
  4. Step 4: Simplify right side
    243.83x = 57,228.61
  5. Step 5: Solve for x
    x = 57,228.61/243.83
  6. Step 6: Final answer
    x = 234.70

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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.