Home / 198,807.30-297,625.05-131,214.65

Finding the Fourth Proportional to 198,807.30, 297,625.05 and 131,214.65

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Solution

The fourth proportional to 198,807.30, 297,625.05 and 131,214.65 is: 196,435.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,807.30 : 297,625.05 = 131,214.65 : x
  2. Step 2: Convert to fraction form
    198,807.30/297,625.05 = 131,214.65/x
  3. Step 3: Cross multiply
    198,807.30x = 297,625.05 × 131,214.65
  4. Step 4: Simplify right side
    198,807.30x = 39,052,765,278.86
  5. Step 5: Solve for x
    x = 39,052,765,278.86/198,807.30
  6. Step 6: Final answer
    x = 196,435.27

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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.