Home / 198,567.05-297,850.43-80,238.47

Finding the Fourth Proportional to 198,567.05, 297,850.43 and 80,238.47

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Solution

The fourth proportional to 198,567.05, 297,850.43 and 80,238.47 is: 120,357.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,567.05 : 297,850.43 = 80,238.47 : x
  2. Step 2: Convert to fraction form
    198,567.05/297,850.43 = 80,238.47/x
  3. Step 3: Cross multiply
    198,567.05x = 297,850.43 × 80,238.47
  4. Step 4: Simplify right side
    198,567.05x = 23,899,061,503.39
  5. Step 5: Solve for x
    x = 23,899,061,503.39/198,567.05
  6. Step 6: Final answer
    x = 120,357.64

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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.