Home / 257,824.20-386,340.72-107,982.51

Finding the Fourth Proportional to 257,824.20, 386,340.72 and 107,982.51

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Solution

The fourth proportional to 257,824.20, 386,340.72 and 107,982.51 is: 161,808.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,824.20 : 386,340.72 = 107,982.51 : x
  2. Step 2: Convert to fraction form
    257,824.20/386,340.72 = 107,982.51/x
  3. Step 3: Cross multiply
    257,824.20x = 386,340.72 × 107,982.51
  4. Step 4: Simplify right side
    257,824.20x = 41,718,040,660.81
  5. Step 5: Solve for x
    x = 41,718,040,660.81/257,824.20
  6. Step 6: Final answer
    x = 161,808.09

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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.