Home / 225,485.40-338,259.16-75,768.48

Finding the Fourth Proportional to 225,485.40, 338,259.16 and 75,768.48

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Solution

The fourth proportional to 225,485.40, 338,259.16 and 75,768.48 is: 113,663.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,485.40 : 338,259.16 = 75,768.48 : x
  2. Step 2: Convert to fraction form
    225,485.40/338,259.16 = 75,768.48/x
  3. Step 3: Cross multiply
    225,485.40x = 338,259.16 × 75,768.48
  4. Step 4: Simplify right side
    225,485.40x = 25,629,382,399.28
  5. Step 5: Solve for x
    x = 25,629,382,399.28/225,485.40
  6. Step 6: Final answer
    x = 113,663.16

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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.