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Finding the Fourth Proportional to 259,863.03, 358,955.15 and 209,067.12

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Solution

The fourth proportional to 259,863.03, 358,955.15 and 209,067.12 is: 288,789.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,863.03 : 358,955.15 = 209,067.12 : x
  2. Step 2: Convert to fraction form
    259,863.03/358,955.15 = 209,067.12/x
  3. Step 3: Cross multiply
    259,863.03x = 358,955.15 × 209,067.12
  4. Step 4: Simplify right side
    259,863.03x = 75,045,718,374.33
  5. Step 5: Solve for x
    x = 75,045,718,374.33/259,863.03
  6. Step 6: Final answer
    x = 288,789.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.