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Finding the Fourth Proportional to 268,768.02, 402,679.10 and 252,767.38

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Solution

The fourth proportional to 268,768.02, 402,679.10 and 252,767.38 is: 378,706.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,768.02 : 402,679.10 = 252,767.38 : x
  2. Step 2: Convert to fraction form
    268,768.02/402,679.10 = 252,767.38/x
  3. Step 3: Cross multiply
    268,768.02x = 402,679.10 × 252,767.38
  4. Step 4: Simplify right side
    268,768.02x = 101,784,142,978.05
  5. Step 5: Solve for x
    x = 101,784,142,978.05/268,768.02
  6. Step 6: Final answer
    x = 378,706.30

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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.