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Finding the Fourth Proportional to 268,348.88, 402,537.12 and 68,671.04

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Solution

The fourth proportional to 268,348.88, 402,537.12 and 68,671.04 is: 103,010.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,348.88 : 402,537.12 = 68,671.04 : x
  2. Step 2: Convert to fraction form
    268,348.88/402,537.12 = 68,671.04/x
  3. Step 3: Cross multiply
    268,348.88x = 402,537.12 × 68,671.04
  4. Step 4: Simplify right side
    268,348.88x = 27,642,642,669.00
  5. Step 5: Solve for x
    x = 27,642,642,669.00/268,348.88
  6. Step 6: Final answer
    x = 103,010.09

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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.