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Finding the Fourth Proportional to 239,847.28, 331,017.28 and 199,489.84

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Solution

The fourth proportional to 239,847.28, 331,017.28 and 199,489.84 is: 275,319.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,847.28 : 331,017.28 = 199,489.84 : x
  2. Step 2: Convert to fraction form
    239,847.28/331,017.28 = 199,489.84/x
  3. Step 3: Cross multiply
    239,847.28x = 331,017.28 × 199,489.84
  4. Step 4: Simplify right side
    239,847.28x = 66,034,584,224.44
  5. Step 5: Solve for x
    x = 66,034,584,224.44/239,847.28
  6. Step 6: Final answer
    x = 275,319.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.