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Finding the Fourth Proportional to 252.39, 377.98 and 193.57

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Solution

The fourth proportional to 252.39, 377.98 and 193.57 is: 289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.39 : 377.98 = 193.57 : x
  2. Step 2: Convert to fraction form
    252.39/377.98 = 193.57/x
  3. Step 3: Cross multiply
    252.39x = 377.98 × 193.57
  4. Step 4: Simplify right side
    252.39x = 73,164.16
  5. Step 5: Solve for x
    x = 73,164.16/252.39
  6. Step 6: Final answer
    x = 289.89

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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.