Home / 331,091.30-496,710.98-120,729.23

Finding the Fourth Proportional to 331,091.30, 496,710.98 and 120,729.23

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Solution

The fourth proportional to 331,091.30, 496,710.98 and 120,729.23 is: 181,120.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,091.30 : 496,710.98 = 120,729.23 : x
  2. Step 2: Convert to fraction form
    331,091.30/496,710.98 = 120,729.23/x
  3. Step 3: Cross multiply
    331,091.30x = 496,710.98 × 120,729.23
  4. Step 4: Simplify right side
    331,091.30x = 59,967,536,849.25
  5. Step 5: Solve for x
    x = 59,967,536,849.25/331,091.30
  6. Step 6: Final answer
    x = 181,120.85

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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.