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Finding the Fourth Proportional to 322,728.50, 445,362.86 and 177,531.15

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Solution

The fourth proportional to 322,728.50, 445,362.86 and 177,531.15 is: 244,991.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,728.50 : 445,362.86 = 177,531.15 : x
  2. Step 2: Convert to fraction form
    322,728.50/445,362.86 = 177,531.15/x
  3. Step 3: Cross multiply
    322,728.50x = 445,362.86 × 177,531.15
  4. Step 4: Simplify right side
    322,728.50x = 79,065,781,818.41
  5. Step 5: Solve for x
    x = 79,065,781,818.41/322,728.50
  6. Step 6: Final answer
    x = 244,991.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.