Home / 243,120.12-335,193.86-199,351.43

Finding the Fourth Proportional to 243,120.12, 335,193.86 and 199,351.43

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Solution

The fourth proportional to 243,120.12, 335,193.86 and 199,351.43 is: 274,849.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,120.12 : 335,193.86 = 199,351.43 : x
  2. Step 2: Convert to fraction form
    243,120.12/335,193.86 = 199,351.43/x
  3. Step 3: Cross multiply
    243,120.12x = 335,193.86 × 199,351.43
  4. Step 4: Simplify right side
    243,120.12x = 66,821,375,397.61
  5. Step 5: Solve for x
    x = 66,821,375,397.61/243,120.12
  6. Step 6: Final answer
    x = 274,849.22

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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.