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Finding the Fourth Proportional to 243,768.97, 336,399.24 and 136,338.92

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Solution

The fourth proportional to 243,768.97, 336,399.24 and 136,338.92 is: 188,146.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,768.97 : 336,399.24 = 136,338.92 : x
  2. Step 2: Convert to fraction form
    243,768.97/336,399.24 = 136,338.92/x
  3. Step 3: Cross multiply
    243,768.97x = 336,399.24 × 136,338.92
  4. Step 4: Simplify right side
    243,768.97x = 45,864,309,161.19
  5. Step 5: Solve for x
    x = 45,864,309,161.19/243,768.97
  6. Step 6: Final answer
    x = 188,146.62

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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.