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Finding the Fourth Proportional to 493,228.56, 680,655.36 and 266,874

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Solution

The fourth proportional to 493,228.56, 680,655.36 and 266,874 is: 368,286.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,228.56 : 680,655.36 = 266,874 : x
  2. Step 2: Convert to fraction form
    493,228.56/680,655.36 = 266,874/x
  3. Step 3: Cross multiply
    493,228.56x = 680,655.36 × 266,874
  4. Step 4: Simplify right side
    493,228.56x = 181,649,218,544.64
  5. Step 5: Solve for x
    x = 181,649,218,544.64/493,228.56
  6. Step 6: Final answer
    x = 368,286.09

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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.