Home / 442,942.20-663,621.30-269,518.20

Finding the Fourth Proportional to 442,942.20, 663,621.30 and 269,518.20

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Solution

The fourth proportional to 442,942.20, 663,621.30 and 269,518.20 is: 403,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,942.20 : 663,621.30 = 269,518.20 : x
  2. Step 2: Convert to fraction form
    442,942.20/663,621.30 = 269,518.20/x
  3. Step 3: Cross multiply
    442,942.20x = 663,621.30 × 269,518.20
  4. Step 4: Simplify right side
    442,942.20x = 178,858,018,257.66
  5. Step 5: Solve for x
    x = 178,858,018,257.66/442,942.20
  6. Step 6: Final answer
    x = 403,795.39

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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.