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Finding the Fourth Proportional to 252.65, 348.66 and 142.13

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Solution

The fourth proportional to 252.65, 348.66 and 142.13 is: 196.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.65 : 348.66 = 142.13 : x
  2. Step 2: Convert to fraction form
    252.65/348.66 = 142.13/x
  3. Step 3: Cross multiply
    252.65x = 348.66 × 142.13
  4. Step 4: Simplify right side
    252.65x = 49,554.00
  5. Step 5: Solve for x
    x = 49,554.00/252.65
  6. Step 6: Final answer
    x = 196.14

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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.