Home / 378,927.29-522,882.42-209,150.48

Finding the Fourth Proportional to 378,927.29, 522,882.42 and 209,150.48

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Solution

The fourth proportional to 378,927.29, 522,882.42 and 209,150.48 is: 288,607.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,927.29 : 522,882.42 = 209,150.48 : x
  2. Step 2: Convert to fraction form
    378,927.29/522,882.42 = 209,150.48/x
  3. Step 3: Cross multiply
    378,927.29x = 522,882.42 × 209,150.48
  4. Step 4: Simplify right side
    378,927.29x = 109,361,106,512.15
  5. Step 5: Solve for x
    x = 109,361,106,512.15/378,927.29
  6. Step 6: Final answer
    x = 288,607.10

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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.