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Finding the Fourth Proportional to 286,568.92, 395,474.70 and 159,249.88

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Solution

The fourth proportional to 286,568.92, 395,474.70 and 159,249.88 is: 219,770.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,568.92 : 395,474.70 = 159,249.88 : x
  2. Step 2: Convert to fraction form
    286,568.92/395,474.70 = 159,249.88/x
  3. Step 3: Cross multiply
    286,568.92x = 395,474.70 × 159,249.88
  4. Step 4: Simplify right side
    286,568.92x = 62,979,298,518.04
  5. Step 5: Solve for x
    x = 62,979,298,518.04/286,568.92
  6. Step 6: Final answer
    x = 219,770.16

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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.