Home / 259,731.64-389,545.62-82,208.44

Finding the Fourth Proportional to 259,731.64, 389,545.62 and 82,208.44

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Solution

The fourth proportional to 259,731.64, 389,545.62 and 82,208.44 is: 123,296.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,731.64 : 389,545.62 = 82,208.44 : x
  2. Step 2: Convert to fraction form
    259,731.64/389,545.62 = 82,208.44/x
  3. Step 3: Cross multiply
    259,731.64x = 389,545.62 × 82,208.44
  4. Step 4: Simplify right side
    259,731.64x = 32,023,937,729.03
  5. Step 5: Solve for x
    x = 32,023,937,729.03/259,731.64
  6. Step 6: Final answer
    x = 123,296.25

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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.