Home / 212,418.24-318,824.46-107,311.02

Finding the Fourth Proportional to 212,418.24, 318,824.46 and 107,311.02

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Solution

The fourth proportional to 212,418.24, 318,824.46 and 107,311.02 is: 161,066.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,418.24 : 318,824.46 = 107,311.02 : x
  2. Step 2: Convert to fraction form
    212,418.24/318,824.46 = 107,311.02/x
  3. Step 3: Cross multiply
    212,418.24x = 318,824.46 × 107,311.02
  4. Step 4: Simplify right side
    212,418.24x = 34,213,378,003.55
  5. Step 5: Solve for x
    x = 34,213,378,003.55/212,418.24
  6. Step 6: Final answer
    x = 161,066.10

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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.