Home / 198,533.89-297,856.42-80,288.27

Finding the Fourth Proportional to 198,533.89, 297,856.42 and 80,288.27

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Solution

The fourth proportional to 198,533.89, 297,856.42 and 80,288.27 is: 120,454.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,533.89 : 297,856.42 = 80,288.27 : x
  2. Step 2: Convert to fraction form
    198,533.89/297,856.42 = 80,288.27/x
  3. Step 3: Cross multiply
    198,533.89x = 297,856.42 × 80,288.27
  4. Step 4: Simplify right side
    198,533.89x = 23,914,376,670.19
  5. Step 5: Solve for x
    x = 23,914,376,670.19/198,533.89
  6. Step 6: Final answer
    x = 120,454.88

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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.