Home / 212,004.96-318,018.33-54,234.78

Finding the Fourth Proportional to 212,004.96, 318,018.33 and 54,234.78

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Solution

The fourth proportional to 212,004.96, 318,018.33 and 54,234.78 is: 81,354.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,004.96 : 318,018.33 = 54,234.78 : x
  2. Step 2: Convert to fraction form
    212,004.96/318,018.33 = 54,234.78/x
  3. Step 3: Cross multiply
    212,004.96x = 318,018.33 × 54,234.78
  4. Step 4: Simplify right side
    212,004.96x = 17,247,654,163.52
  5. Step 5: Solve for x
    x = 17,247,654,163.52/212,004.96
  6. Step 6: Final answer
    x = 81,354.96

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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.