Home / 259,922.39-389,880.74-82,424.66

Finding the Fourth Proportional to 259,922.39, 389,880.74 and 82,424.66

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Solution

The fourth proportional to 259,922.39, 389,880.74 and 82,424.66 is: 123,636.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,922.39 : 389,880.74 = 82,424.66 : x
  2. Step 2: Convert to fraction form
    259,922.39/389,880.74 = 82,424.66/x
  3. Step 3: Cross multiply
    259,922.39x = 389,880.74 × 82,424.66
  4. Step 4: Simplify right side
    259,922.39x = 32,135,785,691.71
  5. Step 5: Solve for x
    x = 32,135,785,691.71/259,922.39
  6. Step 6: Final answer
    x = 123,636.08

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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.