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Finding the Fourth Proportional to 259,405.60, 388,233.60 and 227,912.80

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Solution

The fourth proportional to 259,405.60, 388,233.60 and 227,912.80 is: 341,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,405.60 : 388,233.60 = 227,912.80 : x
  2. Step 2: Convert to fraction form
    259,405.60/388,233.60 = 227,912.80/x
  3. Step 3: Cross multiply
    259,405.60x = 388,233.60 × 227,912.80
  4. Step 4: Simplify right side
    259,405.60x = 88,483,406,830.08
  5. Step 5: Solve for x
    x = 88,483,406,830.08/259,405.60
  6. Step 6: Final answer
    x = 341,100.60

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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.