Home / 378,442.20-522,266.96-217,304.04

Finding the Fourth Proportional to 378,442.20, 522,266.96 and 217,304.04

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Solution

The fourth proportional to 378,442.20, 522,266.96 and 217,304.04 is: 299,889.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,442.20 : 522,266.96 = 217,304.04 : x
  2. Step 2: Convert to fraction form
    378,442.20/522,266.96 = 217,304.04/x
  3. Step 3: Cross multiply
    378,442.20x = 522,266.96 × 217,304.04
  4. Step 4: Simplify right side
    378,442.20x = 113,490,720,366.52
  5. Step 5: Solve for x
    x = 113,490,720,366.52/378,442.20
  6. Step 6: Final answer
    x = 299,889.18

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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.