Home / 198,433.10-297,555.76-76,910.56

Finding the Fourth Proportional to 198,433.10, 297,555.76 and 76,910.56

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Solution

The fourth proportional to 198,433.10, 297,555.76 and 76,910.56 is: 115,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,433.10 : 297,555.76 = 76,910.56 : x
  2. Step 2: Convert to fraction form
    198,433.10/297,555.76 = 76,910.56/x
  3. Step 3: Cross multiply
    198,433.10x = 297,555.76 × 76,910.56
  4. Step 4: Simplify right side
    198,433.10x = 22,885,180,132.83
  5. Step 5: Solve for x
    x = 22,885,180,132.83/198,433.10
  6. Step 6: Final answer
    x = 115,329.45

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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.