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Finding the Fourth Proportional to 279,322.44, 385,461.21 and 151,997.73

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Solution

The fourth proportional to 279,322.44, 385,461.21 and 151,997.73 is: 209,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,322.44 : 385,461.21 = 151,997.73 : x
  2. Step 2: Convert to fraction form
    279,322.44/385,461.21 = 151,997.73/x
  3. Step 3: Cross multiply
    279,322.44x = 385,461.21 × 151,997.73
  4. Step 4: Simplify right side
    279,322.44x = 58,589,228,923.05
  5. Step 5: Solve for x
    x = 58,589,228,923.05/279,322.44
  6. Step 6: Final answer
    x = 209,754.82

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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.