Home / 198,685.22-297,815.45-144,520.02

Finding the Fourth Proportional to 198,685.22, 297,815.45 and 144,520.02

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Solution

The fourth proportional to 198,685.22, 297,815.45 and 144,520.02 is: 216,625.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,685.22 : 297,815.45 = 144,520.02 : x
  2. Step 2: Convert to fraction form
    198,685.22/297,815.45 = 144,520.02/x
  3. Step 3: Cross multiply
    198,685.22x = 297,815.45 × 144,520.02
  4. Step 4: Simplify right side
    198,685.22x = 43,040,294,067.71
  5. Step 5: Solve for x
    x = 43,040,294,067.71/198,685.22
  6. Step 6: Final answer
    x = 216,625.55

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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.