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Finding the Fourth Proportional to 331,364.72, 496,749 and 120,855.44

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Solution

The fourth proportional to 331,364.72, 496,749 and 120,855.44 is: 181,174.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,364.72 : 496,749 = 120,855.44 : x
  2. Step 2: Convert to fraction form
    331,364.72/496,749 = 120,855.44/x
  3. Step 3: Cross multiply
    331,364.72x = 496,749 × 120,855.44
  4. Step 4: Simplify right side
    331,364.72x = 60,034,818,964.56
  5. Step 5: Solve for x
    x = 60,034,818,964.56/331,364.72
  6. Step 6: Final answer
    x = 181,174.44

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1.5x scale

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.