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Finding the Fourth Proportional to 943.05, 1,414.37 and 293.43

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Solution

The fourth proportional to 943.05, 1,414.37 and 293.43 is: 440.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.05 : 1,414.37 = 293.43 : x
  2. Step 2: Convert to fraction form
    943.05/1,414.37 = 293.43/x
  3. Step 3: Cross multiply
    943.05x = 1,414.37 × 293.43
  4. Step 4: Simplify right side
    943.05x = 415,019.32
  5. Step 5: Solve for x
    x = 415,019.32/943.05
  6. Step 6: Final answer
    x = 440.08

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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.