Home / 198,189.48-297,367.61-123,372.21

Finding the Fourth Proportional to 198,189.48, 297,367.61 and 123,372.21

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Solution

The fourth proportional to 198,189.48, 297,367.61 and 123,372.21 is: 185,110.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,189.48 : 297,367.61 = 123,372.21 : x
  2. Step 2: Convert to fraction form
    198,189.48/297,367.61 = 123,372.21/x
  3. Step 3: Cross multiply
    198,189.48x = 297,367.61 × 123,372.21
  4. Step 4: Simplify right side
    198,189.48x = 36,686,898,611.26
  5. Step 5: Solve for x
    x = 36,686,898,611.26/198,189.48
  6. Step 6: Final answer
    x = 185,110.22

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1.5x scale

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.