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Finding the Fourth Proportional to 275,974.13, 380,810.18 and 159,707.54

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Solution

The fourth proportional to 275,974.13, 380,810.18 and 159,707.54 is: 220,376.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,974.13 : 380,810.18 = 159,707.54 : x
  2. Step 2: Convert to fraction form
    275,974.13/380,810.18 = 159,707.54/x
  3. Step 3: Cross multiply
    275,974.13x = 380,810.18 × 159,707.54
  4. Step 4: Simplify right side
    275,974.13x = 60,818,258,406.05
  5. Step 5: Solve for x
    x = 60,818,258,406.05/275,974.13
  6. Step 6: Final answer
    x = 220,376.66

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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.