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Finding the Fourth Proportional to 259,998.73, 389,711.85 and 170,004.33

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Solution

The fourth proportional to 259,998.73, 389,711.85 and 170,004.33 is: 254,819.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,998.73 : 389,711.85 = 170,004.33 : x
  2. Step 2: Convert to fraction form
    259,998.73/389,711.85 = 170,004.33/x
  3. Step 3: Cross multiply
    259,998.73x = 389,711.85 × 170,004.33
  4. Step 4: Simplify right side
    259,998.73x = 66,252,701,952.31
  5. Step 5: Solve for x
    x = 66,252,701,952.31/259,998.73
  6. Step 6: Final answer
    x = 254,819.33

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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.