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Finding the Fourth Proportional to 252.00, 378.10 and 130.35

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Solution

The fourth proportional to 252.00, 378.10 and 130.35 is: 195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.00 : 378.10 = 130.35 : x
  2. Step 2: Convert to fraction form
    252.00/378.10 = 130.35/x
  3. Step 3: Cross multiply
    252.00x = 378.10 × 130.35
  4. Step 4: Simplify right side
    252.00x = 49,283.93
  5. Step 5: Solve for x
    x = 49,283.93/252.00
  6. Step 6: Final answer
    x = 195.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.