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Finding the Fourth Proportional to 543,327.80, 815,283.30 and 227,816.60

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Solution

The fourth proportional to 543,327.80, 815,283.30 and 227,816.60 is: 341,847.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,327.80 : 815,283.30 = 227,816.60 : x
  2. Step 2: Convert to fraction form
    543,327.80/815,283.30 = 227,816.60/x
  3. Step 3: Cross multiply
    543,327.80x = 815,283.30 × 227,816.60
  4. Step 4: Simplify right side
    543,327.80x = 185,735,069,442.78
  5. Step 5: Solve for x
    x = 185,735,069,442.78/543,327.80
  6. Step 6: Final answer
    x = 341,847.17

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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.