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Finding the Fourth Proportional to 275,746.13, 380,550.08 and 154,894.56

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Solution

The fourth proportional to 275,746.13, 380,550.08 and 154,894.56 is: 213,765.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,746.13 : 380,550.08 = 154,894.56 : x
  2. Step 2: Convert to fraction form
    275,746.13/380,550.08 = 154,894.56/x
  3. Step 3: Cross multiply
    275,746.13x = 380,550.08 × 154,894.56
  4. Step 4: Simplify right side
    275,746.13x = 58,945,136,425.09
  5. Step 5: Solve for x
    x = 58,945,136,425.09/275,746.13
  6. Step 6: Final answer
    x = 213,765.96

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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.