Home / 331,378.20-496,575.78-243,396.12

Finding the Fourth Proportional to 331,378.20, 496,575.78 and 243,396.12

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Solution

The fourth proportional to 331,378.20, 496,575.78 and 243,396.12 is: 364,733.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,378.20 : 496,575.78 = 243,396.12 : x
  2. Step 2: Convert to fraction form
    331,378.20/496,575.78 = 243,396.12/x
  3. Step 3: Cross multiply
    331,378.20x = 496,575.78 × 243,396.12
  4. Step 4: Simplify right side
    331,378.20x = 120,864,618,137.97
  5. Step 5: Solve for x
    x = 120,864,618,137.97/331,378.20
  6. Step 6: Final answer
    x = 364,733.16

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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.