Home / 198,002.10-297,003.15-131,531.70

Finding the Fourth Proportional to 198,002.10, 297,003.15 and 131,531.70

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Solution

The fourth proportional to 198,002.10, 297,003.15 and 131,531.70 is: 197,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,002.10 : 297,003.15 = 131,531.70 : x
  2. Step 2: Convert to fraction form
    198,002.10/297,003.15 = 131,531.70/x
  3. Step 3: Cross multiply
    198,002.10x = 297,003.15 × 131,531.70
  4. Step 4: Simplify right side
    198,002.10x = 39,065,329,224.86
  5. Step 5: Solve for x
    x = 39,065,329,224.86/198,002.10
  6. Step 6: Final answer
    x = 197,297.55

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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.