Home / 378,581.46-522,442.80-217,467.69

Finding the Fourth Proportional to 378,581.46, 522,442.80 and 217,467.69

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Solution

The fourth proportional to 378,581.46, 522,442.80 and 217,467.69 is: 300,105.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,581.46 : 522,442.80 = 217,467.69 : x
  2. Step 2: Convert to fraction form
    378,581.46/522,442.80 = 217,467.69/x
  3. Step 3: Cross multiply
    378,581.46x = 522,442.80 × 217,467.69
  4. Step 4: Simplify right side
    378,581.46x = 113,614,428,873.13
  5. Step 5: Solve for x
    x = 113,614,428,873.13/378,581.46
  6. Step 6: Final answer
    x = 300,105.63

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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.