Home / 307,998.14-425,007.42-172,021.28

Finding the Fourth Proportional to 307,998.14, 425,007.42 and 172,021.28

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Solution

The fourth proportional to 307,998.14, 425,007.42 and 172,021.28 is: 237,372.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,998.14 : 425,007.42 = 172,021.28 : x
  2. Step 2: Convert to fraction form
    307,998.14/425,007.42 = 172,021.28/x
  3. Step 3: Cross multiply
    307,998.14x = 425,007.42 × 172,021.28
  4. Step 4: Simplify right side
    307,998.14x = 73,110,320,397.90
  5. Step 5: Solve for x
    x = 73,110,320,397.90/307,998.14
  6. Step 6: Final answer
    x = 237,372.60

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1.5x scale

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.