Home / 305,949.88-422,092.74-225,568.36

Finding the Fourth Proportional to 305,949.88, 422,092.74 and 225,568.36

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Solution

The fourth proportional to 305,949.88, 422,092.74 and 225,568.36 is: 311,197.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,949.88 : 422,092.74 = 225,568.36 : x
  2. Step 2: Convert to fraction form
    305,949.88/422,092.74 = 225,568.36/x
  3. Step 3: Cross multiply
    305,949.88x = 422,092.74 × 225,568.36
  4. Step 4: Simplify right side
    305,949.88x = 95,210,767,129.71
  5. Step 5: Solve for x
    x = 95,210,767,129.71/305,949.88
  6. Step 6: Final answer
    x = 311,197.27

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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.