Home / 259,736.88-389,310.30-109,883.64

Finding the Fourth Proportional to 259,736.88, 389,310.30 and 109,883.64

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Solution

The fourth proportional to 259,736.88, 389,310.30 and 109,883.64 is: 164,700.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,736.88 : 389,310.30 = 109,883.64 : x
  2. Step 2: Convert to fraction form
    259,736.88/389,310.30 = 109,883.64/x
  3. Step 3: Cross multiply
    259,736.88x = 389,310.30 × 109,883.64
  4. Step 4: Simplify right side
    259,736.88x = 42,778,832,853.49
  5. Step 5: Solve for x
    x = 42,778,832,853.49/259,736.88
  6. Step 6: Final answer
    x = 164,700.65

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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.