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Finding the Fourth Proportional to 268,751.20, 403,126.80 and 226,760.80

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Solution

The fourth proportional to 268,751.20, 403,126.80 and 226,760.80 is: 340,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,751.20 : 403,126.80 = 226,760.80 : x
  2. Step 2: Convert to fraction form
    268,751.20/403,126.80 = 226,760.80/x
  3. Step 3: Cross multiply
    268,751.20x = 403,126.80 × 226,760.80
  4. Step 4: Simplify right side
    268,751.20x = 91,413,355,669.44
  5. Step 5: Solve for x
    x = 91,413,355,669.44/268,751.20
  6. Step 6: Final answer
    x = 340,141.20

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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.