Home / 225,419.36-338,129.03-100,672.88

Finding the Fourth Proportional to 225,419.36, 338,129.03 and 100,672.88

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Solution

The fourth proportional to 225,419.36, 338,129.03 and 100,672.88 is: 151,009.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,419.36 : 338,129.03 = 100,672.88 : x
  2. Step 2: Convert to fraction form
    225,419.36/338,129.03 = 100,672.88/x
  3. Step 3: Cross multiply
    225,419.36x = 338,129.03 × 100,672.88
  4. Step 4: Simplify right side
    225,419.36x = 34,040,421,822.74
  5. Step 5: Solve for x
    x = 34,040,421,822.74/225,419.36
  6. Step 6: Final answer
    x = 151,009.31

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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.