Home / 212,360.20-318,540.30-204,195.40

Finding the Fourth Proportional to 212,360.20, 318,540.30 and 204,195.40

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Solution

The fourth proportional to 212,360.20, 318,540.30 and 204,195.40 is: 306,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,360.20 : 318,540.30 = 204,195.40 : x
  2. Step 2: Convert to fraction form
    212,360.20/318,540.30 = 204,195.40/x
  3. Step 3: Cross multiply
    212,360.20x = 318,540.30 × 204,195.40
  4. Step 4: Simplify right side
    212,360.20x = 65,044,463,974.62
  5. Step 5: Solve for x
    x = 65,044,463,974.62/212,360.20
  6. Step 6: Final answer
    x = 306,293.10

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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.