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Finding the Fourth Proportional to 198,573.93, 298,008.55 and 80,246.29

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Solution

The fourth proportional to 198,573.93, 298,008.55 and 80,246.29 is: 120,429.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,573.93 : 298,008.55 = 80,246.29 : x
  2. Step 2: Convert to fraction form
    198,573.93/298,008.55 = 80,246.29/x
  3. Step 3: Cross multiply
    198,573.93x = 298,008.55 × 80,246.29
  4. Step 4: Simplify right side
    198,573.93x = 23,914,080,525.78
  5. Step 5: Solve for x
    x = 23,914,080,525.78/198,573.93
  6. Step 6: Final answer
    x = 120,429.11

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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.