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Finding the Fourth Proportional to 259,404.60, 388,232.10 and 227,911.80

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Solution

The fourth proportional to 259,404.60, 388,232.10 and 227,911.80 is: 341,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,404.60 : 388,232.10 = 227,911.80 : x
  2. Step 2: Convert to fraction form
    259,404.60/388,232.10 = 227,911.80/x
  3. Step 3: Cross multiply
    259,404.60x = 388,232.10 × 227,911.80
  4. Step 4: Simplify right side
    259,404.60x = 88,482,676,728.78
  5. Step 5: Solve for x
    x = 88,482,676,728.78/259,404.60
  6. Step 6: Final answer
    x = 341,099.10

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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.