Home / 198,653.20-297,749.40-80,246.80

Finding the Fourth Proportional to 198,653.20, 297,749.40 and 80,246.80

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Solution

The fourth proportional to 198,653.20, 297,749.40 and 80,246.80 is: 120,277.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,653.20 : 297,749.40 = 80,246.80 : x
  2. Step 2: Convert to fraction form
    198,653.20/297,749.40 = 80,246.80/x
  3. Step 3: Cross multiply
    198,653.20x = 297,749.40 × 80,246.80
  4. Step 4: Simplify right side
    198,653.20x = 23,893,436,551.92
  5. Step 5: Solve for x
    x = 23,893,436,551.92/198,653.20
  6. Step 6: Final answer
    x = 120,277.13

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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.