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Finding the Fourth Proportional to 275,023.44, 379,555.56 and 154,162.80

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Solution

The fourth proportional to 275,023.44, 379,555.56 and 154,162.80 is: 212,757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,023.44 : 379,555.56 = 154,162.80 : x
  2. Step 2: Convert to fraction form
    275,023.44/379,555.56 = 154,162.80/x
  3. Step 3: Cross multiply
    275,023.44x = 379,555.56 × 154,162.80
  4. Step 4: Simplify right side
    275,023.44x = 58,513,347,885.17
  5. Step 5: Solve for x
    x = 58,513,347,885.17/275,023.44
  6. Step 6: Final answer
    x = 212,757.68

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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.