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Finding the Fourth Proportional to 439,438.95, 659,158.43 and 202,711.59

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Solution

The fourth proportional to 439,438.95, 659,158.43 and 202,711.59 is: 304,067.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,438.95 : 659,158.43 = 202,711.59 : x
  2. Step 2: Convert to fraction form
    439,438.95/659,158.43 = 202,711.59/x
  3. Step 3: Cross multiply
    439,438.95x = 659,158.43 × 202,711.59
  4. Step 4: Simplify right side
    439,438.95x = 133,619,052,393.65
  5. Step 5: Solve for x
    x = 133,619,052,393.65/439,438.95
  6. Step 6: Final answer
    x = 304,067.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.