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Finding the Fourth Proportional to 439,441.21, 606,445.20 and 248,443.21

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Solution

The fourth proportional to 439,441.21, 606,445.20 and 248,443.21 is: 342,860.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,441.21 : 606,445.20 = 248,443.21 : x
  2. Step 2: Convert to fraction form
    439,441.21/606,445.20 = 248,443.21/x
  3. Step 3: Cross multiply
    439,441.21x = 606,445.20 × 248,443.21
  4. Step 4: Simplify right side
    439,441.21x = 150,667,187,902.65
  5. Step 5: Solve for x
    x = 150,667,187,902.65/439,441.21
  6. Step 6: Final answer
    x = 342,860.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.