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Finding the Fourth Proportional to 259,398.70, 389,173.23 and 107,567.57

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Solution

The fourth proportional to 259,398.70, 389,173.23 and 107,567.57 is: 161,382.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,398.70 : 389,173.23 = 107,567.57 : x
  2. Step 2: Convert to fraction form
    259,398.70/389,173.23 = 107,567.57/x
  3. Step 3: Cross multiply
    259,398.70x = 389,173.23 × 107,567.57
  4. Step 4: Simplify right side
    259,398.70x = 41,862,419,633.08
  5. Step 5: Solve for x
    x = 41,862,419,633.08/259,398.70
  6. Step 6: Final answer
    x = 161,382.54

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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.