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Finding the Fourth Proportional to 275,257.96, 379,934.58 and 162,145.96

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Solution

The fourth proportional to 275,257.96, 379,934.58 and 162,145.96 is: 223,807.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,257.96 : 379,934.58 = 162,145.96 : x
  2. Step 2: Convert to fraction form
    275,257.96/379,934.58 = 162,145.96/x
  3. Step 3: Cross multiply
    275,257.96x = 379,934.58 × 162,145.96
  4. Step 4: Simplify right side
    275,257.96x = 61,604,857,211.30
  5. Step 5: Solve for x
    x = 61,604,857,211.30/275,257.96
  6. Step 6: Final answer
    x = 223,807.72

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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.