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Finding the Fourth Proportional to 275,394.74, 380,048.37 and 154,562.18

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Solution

The fourth proportional to 275,394.74, 380,048.37 and 154,562.18 is: 213,297.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,394.74 : 380,048.37 = 154,562.18 : x
  2. Step 2: Convert to fraction form
    275,394.74/380,048.37 = 154,562.18/x
  3. Step 3: Cross multiply
    275,394.74x = 380,048.37 × 154,562.18
  4. Step 4: Simplify right side
    275,394.74x = 58,741,104,572.65
  5. Step 5: Solve for x
    x = 58,741,104,572.65/275,394.74
  6. Step 6: Final answer
    x = 213,297.85

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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.