Home / 212,002.32-318,000.24-54,229.44

Finding the Fourth Proportional to 212,002.32, 318,000.24 and 54,229.44

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Solution

The fourth proportional to 212,002.32, 318,000.24 and 54,229.44 is: 81,343.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,002.32 : 318,000.24 = 54,229.44 : x
  2. Step 2: Convert to fraction form
    212,002.32/318,000.24 = 54,229.44/x
  3. Step 3: Cross multiply
    212,002.32x = 318,000.24 × 54,229.44
  4. Step 4: Simplify right side
    212,002.32x = 17,244,974,935.07
  5. Step 5: Solve for x
    x = 17,244,974,935.07/212,002.32
  6. Step 6: Final answer
    x = 81,343.33

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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.