Home / 275,121.38-379,666.05-154,262.54

Finding the Fourth Proportional to 275,121.38, 379,666.05 and 154,262.54

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Solution

The fourth proportional to 275,121.38, 379,666.05 and 154,262.54 is: 212,881.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,121.38 : 379,666.05 = 154,262.54 : x
  2. Step 2: Convert to fraction form
    275,121.38/379,666.05 = 154,262.54/x
  3. Step 3: Cross multiply
    275,121.38x = 379,666.05 × 154,262.54
  4. Step 4: Simplify right side
    275,121.38x = 58,568,249,224.77
  5. Step 5: Solve for x
    x = 58,568,249,224.77/275,121.38
  6. Step 6: Final answer
    x = 212,881.49

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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.