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Finding the Fourth Proportional to 276,010.61, 380,828.13 and 161,224.09

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Solution

The fourth proportional to 276,010.61, 380,828.13 and 161,224.09 is: 222,450.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,010.61 : 380,828.13 = 161,224.09 : x
  2. Step 2: Convert to fraction form
    276,010.61/380,828.13 = 161,224.09/x
  3. Step 3: Cross multiply
    276,010.61x = 380,828.13 × 161,224.09
  4. Step 4: Simplify right side
    276,010.61x = 61,398,668,055.88
  5. Step 5: Solve for x
    x = 61,398,668,055.88/276,010.61
  6. Step 6: Final answer
    x = 222,450.39

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1.5x scale

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.