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Finding the Fourth Proportional to 286,644, 395,575.44 and 159,324.96

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Solution

The fourth proportional to 286,644, 395,575.44 and 159,324.96 is: 219,872.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,644 : 395,575.44 = 159,324.96 : x
  2. Step 2: Convert to fraction form
    286,644/395,575.44 = 159,324.96/x
  3. Step 3: Cross multiply
    286,644x = 395,575.44 × 159,324.96
  4. Step 4: Simplify right side
    286,644x = 63,025,041,154.98
  5. Step 5: Solve for x
    x = 63,025,041,154.98/286,644
  6. Step 6: Final answer
    x = 219,872.18

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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.