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Finding the Fourth Proportional to 331,481, 497,299.26 and 109,865

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Solution

The fourth proportional to 331,481, 497,299.26 and 109,865 is: 164,823.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,481 : 497,299.26 = 109,865 : x
  2. Step 2: Convert to fraction form
    331,481/497,299.26 = 109,865/x
  3. Step 3: Cross multiply
    331,481x = 497,299.26 × 109,865
  4. Step 4: Simplify right side
    331,481x = 54,635,783,199.90
  5. Step 5: Solve for x
    x = 54,635,783,199.90/331,481
  6. Step 6: Final answer
    x = 164,823.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.