Home / 378,763.28-522,882.56-235,569.48

Finding the Fourth Proportional to 378,763.28, 522,882.56 and 235,569.48

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Solution

The fourth proportional to 378,763.28, 522,882.56 and 235,569.48 is: 325,203.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,763.28 : 522,882.56 = 235,569.48 : x
  2. Step 2: Convert to fraction form
    378,763.28/522,882.56 = 235,569.48/x
  3. Step 3: Cross multiply
    378,763.28x = 522,882.56 × 235,569.48
  4. Step 4: Simplify right side
    378,763.28x = 123,175,172,760.27
  5. Step 5: Solve for x
    x = 123,175,172,760.27/378,763.28
  6. Step 6: Final answer
    x = 325,203.58

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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.