Home / 442,642.20-663,171.30-269,218.20

Finding the Fourth Proportional to 442,642.20, 663,171.30 and 269,218.20

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Solution

The fourth proportional to 442,642.20, 663,171.30 and 269,218.20 is: 403,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,642.20 : 663,171.30 = 269,218.20 : x
  2. Step 2: Convert to fraction form
    442,642.20/663,171.30 = 269,218.20/x
  3. Step 3: Cross multiply
    442,642.20x = 663,171.30 × 269,218.20
  4. Step 4: Simplify right side
    442,642.20x = 178,537,783,677.66
  5. Step 5: Solve for x
    x = 178,537,783,677.66/442,642.20
  6. Step 6: Final answer
    x = 403,345.60

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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.