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Finding the Fourth Proportional to 331,328.60, 496,992.90 and 109,712.60

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Solution

The fourth proportional to 331,328.60, 496,992.90 and 109,712.60 is: 164,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,328.60 : 496,992.90 = 109,712.60 : x
  2. Step 2: Convert to fraction form
    331,328.60/496,992.90 = 109,712.60/x
  3. Step 3: Cross multiply
    331,328.60x = 496,992.90 × 109,712.60
  4. Step 4: Simplify right side
    331,328.60x = 54,526,383,240.54
  5. Step 5: Solve for x
    x = 54,526,383,240.54/331,328.60
  6. Step 6: Final answer
    x = 164,568.90

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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.