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Finding the Fourth Proportional to 194.38, 290.53 and 159.95

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Solution

The fourth proportional to 194.38, 290.53 and 159.95 is: 239.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.38 : 290.53 = 159.95 : x
  2. Step 2: Convert to fraction form
    194.38/290.53 = 159.95/x
  3. Step 3: Cross multiply
    194.38x = 290.53 × 159.95
  4. Step 4: Simplify right side
    194.38x = 46,470.27
  5. Step 5: Solve for x
    x = 46,470.27/194.38
  6. Step 6: Final answer
    x = 239.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.