Home / 331,321.60-496,982.40-109,705.60

Finding the Fourth Proportional to 331,321.60, 496,982.40 and 109,705.60

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Solution

The fourth proportional to 331,321.60, 496,982.40 and 109,705.60 is: 164,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,321.60 : 496,982.40 = 109,705.60 : x
  2. Step 2: Convert to fraction form
    331,321.60/496,982.40 = 109,705.60/x
  3. Step 3: Cross multiply
    331,321.60x = 496,982.40 × 109,705.60
  4. Step 4: Simplify right side
    331,321.60x = 54,521,752,381.44
  5. Step 5: Solve for x
    x = 54,521,752,381.44/331,321.60
  6. Step 6: Final answer
    x = 164,558.40

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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.