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Finding the Fourth Proportional to 276,037.27, 380,905.20 and 161,342.82

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Solution

The fourth proportional to 276,037.27, 380,905.20 and 161,342.82 is: 222,637.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,037.27 : 380,905.20 = 161,342.82 : x
  2. Step 2: Convert to fraction form
    276,037.27/380,905.20 = 161,342.82/x
  3. Step 3: Cross multiply
    276,037.27x = 380,905.20 × 161,342.82
  4. Step 4: Simplify right side
    276,037.27x = 61,456,319,120.66
  5. Step 5: Solve for x
    x = 61,456,319,120.66/276,037.27
  6. Step 6: Final answer
    x = 222,637.76

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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.