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Finding the Fourth Proportional to 268,242.38, 402,361.98 and 68,562.45

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Solution

The fourth proportional to 268,242.38, 402,361.98 and 68,562.45 is: 102,843.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,242.38 : 402,361.98 = 68,562.45 : x
  2. Step 2: Convert to fraction form
    268,242.38/402,361.98 = 68,562.45/x
  3. Step 3: Cross multiply
    268,242.38x = 402,361.98 × 68,562.45
  4. Step 4: Simplify right side
    268,242.38x = 27,586,923,264.21
  5. Step 5: Solve for x
    x = 27,586,923,264.21/268,242.38
  6. Step 6: Final answer
    x = 102,843.27

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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.