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Finding the Fourth Proportional to 323,997.84, 486,213.66 and 134,458.38

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Solution

The fourth proportional to 323,997.84, 486,213.66 and 134,458.38 is: 201,777.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,997.84 : 486,213.66 = 134,458.38 : x
  2. Step 2: Convert to fraction form
    323,997.84/486,213.66 = 134,458.38/x
  3. Step 3: Cross multiply
    323,997.84x = 486,213.66 × 134,458.38
  4. Step 4: Simplify right side
    323,997.84x = 65,375,501,057.47
  5. Step 5: Solve for x
    x = 65,375,501,057.47/323,997.84
  6. Step 6: Final answer
    x = 201,777.58

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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.