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Finding the Fourth Proportional to 311,926.20, 467,233.20 and 259,438.20

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Solution

The fourth proportional to 311,926.20, 467,233.20 and 259,438.20 is: 388,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,926.20 : 467,233.20 = 259,438.20 : x
  2. Step 2: Convert to fraction form
    311,926.20/467,233.20 = 259,438.20/x
  3. Step 3: Cross multiply
    311,926.20x = 467,233.20 × 259,438.20
  4. Step 4: Simplify right side
    311,926.20x = 121,218,140,388.24
  5. Step 5: Solve for x
    x = 121,218,140,388.24/311,926.20
  6. Step 6: Final answer
    x = 388,611.60

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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.