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Finding the Fourth Proportional to 193,393.18, 290,103.74 and 80,960.32

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Solution

The fourth proportional to 193,393.18, 290,103.74 and 80,960.32 is: 121,446.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,393.18 : 290,103.74 = 80,960.32 : x
  2. Step 2: Convert to fraction form
    193,393.18/290,103.74 = 80,960.32/x
  3. Step 3: Cross multiply
    193,393.18x = 290,103.74 × 80,960.32
  4. Step 4: Simplify right side
    193,393.18x = 23,486,891,623.60
  5. Step 5: Solve for x
    x = 23,486,891,623.60/193,393.18
  6. Step 6: Final answer
    x = 121,446.33

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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.