Home / 331,211.45-496,890.48-120,848.78

Finding the Fourth Proportional to 331,211.45, 496,890.48 and 120,848.78

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Solution

The fourth proportional to 331,211.45, 496,890.48 and 120,848.78 is: 181,299.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,211.45 : 496,890.48 = 120,848.78 : x
  2. Step 2: Convert to fraction form
    331,211.45/496,890.48 = 120,848.78/x
  3. Step 3: Cross multiply
    331,211.45x = 496,890.48 × 120,848.78
  4. Step 4: Simplify right side
    331,211.45x = 60,048,608,301.61
  5. Step 5: Solve for x
    x = 60,048,608,301.61/331,211.45
  6. Step 6: Final answer
    x = 181,299.92

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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.