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Finding the Fourth Proportional to 330,806.96, 496,374.60 and 131,122.96

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Solution

The fourth proportional to 330,806.96, 496,374.60 and 131,122.96 is: 196,749.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,806.96 : 496,374.60 = 131,122.96 : x
  2. Step 2: Convert to fraction form
    330,806.96/496,374.60 = 131,122.96/x
  3. Step 3: Cross multiply
    330,806.96x = 496,374.60 × 131,122.96
  4. Step 4: Simplify right side
    330,806.96x = 65,086,106,820.82
  5. Step 5: Solve for x
    x = 65,086,106,820.82/330,806.96
  6. Step 6: Final answer
    x = 196,749.51

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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.