Home / 259,697.26-389,596.38-99,761.50

Finding the Fourth Proportional to 259,697.26, 389,596.38 and 99,761.50

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Solution

The fourth proportional to 259,697.26, 389,596.38 and 99,761.50 is: 149,661.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,697.26 : 389,596.38 = 99,761.50 : x
  2. Step 2: Convert to fraction form
    259,697.26/389,596.38 = 99,761.50/x
  3. Step 3: Cross multiply
    259,697.26x = 389,596.38 × 99,761.50
  4. Step 4: Simplify right side
    259,697.26x = 38,866,719,263.37
  5. Step 5: Solve for x
    x = 38,866,719,263.37/259,697.26
  6. Step 6: Final answer
    x = 149,661.65

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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.