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Finding the Fourth Proportional to 330,805.96, 496,373.10 and 131,121.96

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Solution

The fourth proportional to 330,805.96, 496,373.10 and 131,121.96 is: 196,748.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,805.96 : 496,373.10 = 131,121.96 : x
  2. Step 2: Convert to fraction form
    330,805.96/496,373.10 = 131,121.96/x
  3. Step 3: Cross multiply
    330,805.96x = 496,373.10 × 131,121.96
  4. Step 4: Simplify right side
    330,805.96x = 65,085,413,763.28
  5. Step 5: Solve for x
    x = 65,085,413,763.28/330,805.96
  6. Step 6: Final answer
    x = 196,748.01

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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.