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Finding the Fourth Proportional to 199,029.44, 298,539.52 and 80,669.12

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Solution

The fourth proportional to 199,029.44, 298,539.52 and 80,669.12 is: 121,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,029.44 : 298,539.52 = 80,669.12 : x
  2. Step 2: Convert to fraction form
    199,029.44/298,539.52 = 80,669.12/x
  3. Step 3: Cross multiply
    199,029.44x = 298,539.52 × 80,669.12
  4. Step 4: Simplify right side
    199,029.44x = 24,082,920,363.62
  5. Step 5: Solve for x
    x = 24,082,920,363.62/199,029.44
  6. Step 6: Final answer
    x = 121,001.80

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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.