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Finding the Fourth Proportional to 274,700.80, 411,436.80 and 268,556.80

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Solution

The fourth proportional to 274,700.80, 411,436.80 and 268,556.80 is: 402,234.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,700.80 : 411,436.80 = 268,556.80 : x
  2. Step 2: Convert to fraction form
    274,700.80/411,436.80 = 268,556.80/x
  3. Step 3: Cross multiply
    274,700.80x = 411,436.80 × 268,556.80
  4. Step 4: Simplify right side
    274,700.80x = 110,494,150,410.24
  5. Step 5: Solve for x
    x = 110,494,150,410.24/274,700.80
  6. Step 6: Final answer
    x = 402,234.54

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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.