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Finding the Fourth Proportional to 331,971.40, 497,363.10 and 201,903.40

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Solution

The fourth proportional to 331,971.40, 497,363.10 and 201,903.40 is: 302,493.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,971.40 : 497,363.10 = 201,903.40 : x
  2. Step 2: Convert to fraction form
    331,971.40/497,363.10 = 201,903.40/x
  3. Step 3: Cross multiply
    331,971.40x = 497,363.10 × 201,903.40
  4. Step 4: Simplify right side
    331,971.40x = 100,419,300,924.54
  5. Step 5: Solve for x
    x = 100,419,300,924.54/331,971.40
  6. Step 6: Final answer
    x = 302,493.83

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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.