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Finding the Fourth Proportional to 268,737.88, 403,165.14 and 81,744.52

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Solution

The fourth proportional to 268,737.88, 403,165.14 and 81,744.52 is: 122,634.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,737.88 : 403,165.14 = 81,744.52 : x
  2. Step 2: Convert to fraction form
    268,737.88/403,165.14 = 81,744.52/x
  3. Step 3: Cross multiply
    268,737.88x = 403,165.14 × 81,744.52
  4. Step 4: Simplify right side
    268,737.88x = 32,956,540,441.31
  5. Step 5: Solve for x
    x = 32,956,540,441.31/268,737.88
  6. Step 6: Final answer
    x = 122,634.52

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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.