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Finding the Fourth Proportional to 276,039.26, 380,907.96 and 161,344.82

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Solution

The fourth proportional to 276,039.26, 380,907.96 and 161,344.82 is: 222,640.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,039.26 : 380,907.96 = 161,344.82 : x
  2. Step 2: Convert to fraction form
    276,039.26/380,907.96 = 161,344.82/x
  3. Step 3: Cross multiply
    276,039.26x = 380,907.96 × 161,344.82
  4. Step 4: Simplify right side
    276,039.26x = 61,457,526,242.77
  5. Step 5: Solve for x
    x = 61,457,526,242.77/276,039.26
  6. Step 6: Final answer
    x = 222,640.53

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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.