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Finding the Fourth Proportional to 252.23, 378.04 and 130.43

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Solution

The fourth proportional to 252.23, 378.04 and 130.43 is: 195.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.23 : 378.04 = 130.43 : x
  2. Step 2: Convert to fraction form
    252.23/378.04 = 130.43/x
  3. Step 3: Cross multiply
    252.23x = 378.04 × 130.43
  4. Step 4: Simplify right side
    252.23x = 49,307.76
  5. Step 5: Solve for x
    x = 49,307.76/252.23
  6. Step 6: Final answer
    x = 195.49

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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.