Home / 198,379.75-298,642.13-180,723.88

Finding the Fourth Proportional to 198,379.75, 298,642.13 and 180,723.88

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Solution

The fourth proportional to 198,379.75, 298,642.13 and 180,723.88 is: 272,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,379.75 : 298,642.13 = 180,723.88 : x
  2. Step 2: Convert to fraction form
    198,379.75/298,642.13 = 180,723.88/x
  3. Step 3: Cross multiply
    198,379.75x = 298,642.13 × 180,723.88
  4. Step 4: Simplify right side
    198,379.75x = 53,971,764,465.06
  5. Step 5: Solve for x
    x = 53,971,764,465.06/198,379.75
  6. Step 6: Final answer
    x = 272,062.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.