Home / 378,133.56-521,837.46-206,065.62

Finding the Fourth Proportional to 378,133.56, 521,837.46 and 206,065.62

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Solution

The fourth proportional to 378,133.56, 521,837.46 and 206,065.62 is: 284,377.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,133.56 : 521,837.46 = 206,065.62 : x
  2. Step 2: Convert to fraction form
    378,133.56/521,837.46 = 206,065.62/x
  3. Step 3: Cross multiply
    378,133.56x = 521,837.46 × 206,065.62
  4. Step 4: Simplify right side
    378,133.56x = 107,532,759,734.13
  5. Step 5: Solve for x
    x = 107,532,759,734.13/378,133.56
  6. Step 6: Final answer
    x = 284,377.72

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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.