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Finding the Fourth Proportional to 893.01, 1,338.98 and 344.73

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Solution

The fourth proportional to 893.01, 1,338.98 and 344.73 is: 516.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    893.01 : 1,338.98 = 344.73 : x
  2. Step 2: Convert to fraction form
    893.01/1,338.98 = 344.73/x
  3. Step 3: Cross multiply
    893.01x = 1,338.98 × 344.73
  4. Step 4: Simplify right side
    893.01x = 461,588.20
  5. Step 5: Solve for x
    x = 461,588.20/893.01
  6. Step 6: Final answer
    x = 516.89

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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.