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Finding the Fourth Proportional to 349,300.80, 522,914.40 and 231,105.60

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Solution

The fourth proportional to 349,300.80, 522,914.40 and 231,105.60 is: 345,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,300.80 : 522,914.40 = 231,105.60 : x
  2. Step 2: Convert to fraction form
    349,300.80/522,914.40 = 231,105.60/x
  3. Step 3: Cross multiply
    349,300.80x = 522,914.40 × 231,105.60
  4. Step 4: Simplify right side
    349,300.80x = 120,848,446,160.64
  5. Step 5: Solve for x
    x = 120,848,446,160.64/349,300.80
  6. Step 6: Final answer
    x = 345,972.43

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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.