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Finding the Fourth Proportional to 259,999.73, 389,713.35 and 170,005.33

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Solution

The fourth proportional to 259,999.73, 389,713.35 and 170,005.33 is: 254,820.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,999.73 : 389,713.35 = 170,005.33 : x
  2. Step 2: Convert to fraction form
    259,999.73/389,713.35 = 170,005.33/x
  3. Step 3: Cross multiply
    259,999.73x = 389,713.35 × 170,005.33
  4. Step 4: Simplify right side
    259,999.73x = 66,253,346,672.16
  5. Step 5: Solve for x
    x = 66,253,346,672.16/259,999.73
  6. Step 6: Final answer
    x = 254,820.83

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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.