Home / 257,067.91-354,643.77-155,035.36

Finding the Fourth Proportional to 257,067.91, 354,643.77 and 155,035.36

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Solution

The fourth proportional to 257,067.91, 354,643.77 and 155,035.36 is: 213,882.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,067.91 : 354,643.77 = 155,035.36 : x
  2. Step 2: Convert to fraction form
    257,067.91/354,643.77 = 155,035.36/x
  3. Step 3: Cross multiply
    257,067.91x = 354,643.77 × 155,035.36
  4. Step 4: Simplify right side
    257,067.91x = 54,982,324,553.71
  5. Step 5: Solve for x
    x = 54,982,324,553.71/257,067.91
  6. Step 6: Final answer
    x = 213,882.49

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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.