Home / 259,311.38-389,120.15-109,541.97

Finding the Fourth Proportional to 259,311.38, 389,120.15 and 109,541.97

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Solution

The fourth proportional to 259,311.38, 389,120.15 and 109,541.97 is: 164,377.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,311.38 : 389,120.15 = 109,541.97 : x
  2. Step 2: Convert to fraction form
    259,311.38/389,120.15 = 109,541.97/x
  3. Step 3: Cross multiply
    259,311.38x = 389,120.15 × 109,541.97
  4. Step 4: Simplify right side
    259,311.38x = 42,624,988,071.55
  5. Step 5: Solve for x
    x = 42,624,988,071.55/259,311.38
  6. Step 6: Final answer
    x = 164,377.63

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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.