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Finding the Fourth Proportional to 243,793.89, 365,689.17 and 66,300.21

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Solution

The fourth proportional to 243,793.89, 365,689.17 and 66,300.21 is: 99,449.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,793.89 : 365,689.17 = 66,300.21 : x
  2. Step 2: Convert to fraction form
    243,793.89/365,689.17 = 66,300.21/x
  3. Step 3: Cross multiply
    243,793.89x = 365,689.17 × 66,300.21
  4. Step 4: Simplify right side
    243,793.89x = 24,245,268,765.73
  5. Step 5: Solve for x
    x = 24,245,268,765.73/243,793.89
  6. Step 6: Final answer
    x = 99,449.86

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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.