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Finding the Fourth Proportional to 275,669.96, 380,433.72 and 154,832.54

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Solution

The fourth proportional to 275,669.96, 380,433.72 and 154,832.54 is: 213,674.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,669.96 : 380,433.72 = 154,832.54 : x
  2. Step 2: Convert to fraction form
    275,669.96/380,433.72 = 154,832.54/x
  3. Step 3: Cross multiply
    275,669.96x = 380,433.72 × 154,832.54
  4. Step 4: Simplify right side
    275,669.96x = 58,903,519,169.25
  5. Step 5: Solve for x
    x = 58,903,519,169.25/275,669.96
  6. Step 6: Final answer
    x = 213,674.06

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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.