Home / 212,002.82-318,000.99-54,229.94

Finding the Fourth Proportional to 212,002.82, 318,000.99 and 54,229.94

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Solution

The fourth proportional to 212,002.82, 318,000.99 and 54,229.94 is: 81,344.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,002.82 : 318,000.99 = 54,229.94 : x
  2. Step 2: Convert to fraction form
    212,002.82/318,000.99 = 54,229.94/x
  3. Step 3: Cross multiply
    212,002.82x = 318,000.99 × 54,229.94
  4. Step 4: Simplify right side
    212,002.82x = 17,245,174,607.64
  5. Step 5: Solve for x
    x = 17,245,174,607.64/212,002.82
  6. Step 6: Final answer
    x = 81,344.08

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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.