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Finding the Fourth Proportional to 275,753.73, 380,525.52 and 154,900.11

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Solution

The fourth proportional to 275,753.73, 380,525.52 and 154,900.11 is: 213,753.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,753.73 : 380,525.52 = 154,900.11 : x
  2. Step 2: Convert to fraction form
    275,753.73/380,525.52 = 154,900.11/x
  3. Step 3: Cross multiply
    275,753.73x = 380,525.52 × 154,900.11
  4. Step 4: Simplify right side
    275,753.73x = 58,943,444,905.81
  5. Step 5: Solve for x
    x = 58,943,444,905.81/275,753.73
  6. Step 6: Final answer
    x = 213,753.94

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Why These Related Problems?

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