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Finding the Fourth Proportional to 203,679.97, 305,447.05 and 70,524.47

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Solution

The fourth proportional to 203,679.97, 305,447.05 and 70,524.47 is: 105,761.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,679.97 : 305,447.05 = 70,524.47 : x
  2. Step 2: Convert to fraction form
    203,679.97/305,447.05 = 70,524.47/x
  3. Step 3: Cross multiply
    203,679.97x = 305,447.05 × 70,524.47
  4. Step 4: Simplify right side
    203,679.97x = 21,541,492,166.09
  5. Step 5: Solve for x
    x = 21,541,492,166.09/203,679.97
  6. Step 6: Final answer
    x = 105,761.47

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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.