Home / 308,195.51-425,310.38-172,229.45

Finding the Fourth Proportional to 308,195.51, 425,310.38 and 172,229.45

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Solution

The fourth proportional to 308,195.51, 425,310.38 and 172,229.45 is: 237,676.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,195.51 : 425,310.38 = 172,229.45 : x
  2. Step 2: Convert to fraction form
    308,195.51/425,310.38 = 172,229.45/x
  3. Step 3: Cross multiply
    308,195.51x = 425,310.38 × 172,229.45
  4. Step 4: Simplify right side
    308,195.51x = 73,250,973,028.82
  5. Step 5: Solve for x
    x = 73,250,973,028.82/308,195.51
  6. Step 6: Final answer
    x = 237,676.97

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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.