Home / 205,378.20-308,067.30-57,634.20

Finding the Fourth Proportional to 205,378.20, 308,067.30 and 57,634.20

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Solution

The fourth proportional to 205,378.20, 308,067.30 and 57,634.20 is: 86,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,378.20 : 308,067.30 = 57,634.20 : x
  2. Step 2: Convert to fraction form
    205,378.20/308,067.30 = 57,634.20/x
  3. Step 3: Cross multiply
    205,378.20x = 308,067.30 × 57,634.20
  4. Step 4: Simplify right side
    205,378.20x = 17,755,212,381.66
  5. Step 5: Solve for x
    x = 17,755,212,381.66/205,378.20
  6. Step 6: Final answer
    x = 86,451.30

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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.