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Finding the Fourth Proportional to 290.31, 434.96 and 241.87

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Solution

The fourth proportional to 290.31, 434.96 and 241.87 is: 362.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    290.31 : 434.96 = 241.87 : x
  2. Step 2: Convert to fraction form
    290.31/434.96 = 241.87/x
  3. Step 3: Cross multiply
    290.31x = 434.96 × 241.87
  4. Step 4: Simplify right side
    290.31x = 105,204.02
  5. Step 5: Solve for x
    x = 105,204.02/290.31
  6. Step 6: Final answer
    x = 362.39

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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.