Home / 259,768.20-389,674.48-91,273.93

Finding the Fourth Proportional to 259,768.20, 389,674.48 and 91,273.93

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Solution

The fourth proportional to 259,768.20, 389,674.48 and 91,273.93 is: 136,918.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,768.20 : 389,674.48 = 91,273.93 : x
  2. Step 2: Convert to fraction form
    259,768.20/389,674.48 = 91,273.93/x
  3. Step 3: Cross multiply
    259,768.20x = 389,674.48 × 91,273.93
  4. Step 4: Simplify right side
    259,768.20x = 35,567,121,210.31
  5. Step 5: Solve for x
    x = 35,567,121,210.31/259,768.20
  6. Step 6: Final answer
    x = 136,918.69

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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.