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Finding the Fourth Proportional to 259,998.97, 389,712.22 and 170,004.58

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Solution

The fourth proportional to 259,998.97, 389,712.22 and 170,004.58 is: 254,819.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,998.97 : 389,712.22 = 170,004.58 : x
  2. Step 2: Convert to fraction form
    259,998.97/389,712.22 = 170,004.58/x
  3. Step 3: Cross multiply
    259,998.97x = 389,712.22 × 170,004.58
  4. Step 4: Simplify right side
    259,998.97x = 66,252,862,281.97
  5. Step 5: Solve for x
    x = 66,252,862,281.97/259,998.97
  6. Step 6: Final answer
    x = 254,819.71

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1.5x scale

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.