Home / 225,388.12-311,046.08-124,788.28

Finding the Fourth Proportional to 225,388.12, 311,046.08 and 124,788.28

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Solution

The fourth proportional to 225,388.12, 311,046.08 and 124,788.28 is: 172,213.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,388.12 : 311,046.08 = 124,788.28 : x
  2. Step 2: Convert to fraction form
    225,388.12/311,046.08 = 124,788.28/x
  3. Step 3: Cross multiply
    225,388.12x = 311,046.08 × 124,788.28
  4. Step 4: Simplify right side
    225,388.12x = 38,814,905,323.94
  5. Step 5: Solve for x
    x = 38,814,905,323.94/225,388.12
  6. Step 6: Final answer
    x = 172,213.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.