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Finding the Fourth Proportional to 194.03, 290.76 and 145.97

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Solution

The fourth proportional to 194.03, 290.76 and 145.97 is: 218.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.03 : 290.76 = 145.97 : x
  2. Step 2: Convert to fraction form
    194.03/290.76 = 145.97/x
  3. Step 3: Cross multiply
    194.03x = 290.76 × 145.97
  4. Step 4: Simplify right side
    194.03x = 42,440.78
  5. Step 5: Solve for x
    x = 42,440.78/194.03
  6. Step 6: Final answer
    x = 218.74

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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.