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Finding the Fourth Proportional to 330,873.40, 496,310.10 and 131,241.40

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Solution

The fourth proportional to 330,873.40, 496,310.10 and 131,241.40 is: 196,862.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,873.40 : 496,310.10 = 131,241.40 : x
  2. Step 2: Convert to fraction form
    330,873.40/496,310.10 = 131,241.40/x
  3. Step 3: Cross multiply
    330,873.40x = 496,310.10 × 131,241.40
  4. Step 4: Simplify right side
    330,873.40x = 65,136,432,358.14
  5. Step 5: Solve for x
    x = 65,136,432,358.14/330,873.40
  6. Step 6: Final answer
    x = 196,862.10

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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.