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Finding the Fourth Proportional to 544.05, 815.37 and 235.81

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Solution

The fourth proportional to 544.05, 815.37 and 235.81 is: 353.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.05 : 815.37 = 235.81 : x
  2. Step 2: Convert to fraction form
    544.05/815.37 = 235.81/x
  3. Step 3: Cross multiply
    544.05x = 815.37 × 235.81
  4. Step 4: Simplify right side
    544.05x = 192,272.40
  5. Step 5: Solve for x
    x = 192,272.40/544.05
  6. Step 6: Final answer
    x = 353.41

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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.