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Finding the Fourth Proportional to 344.99, 517.56 and 162.28

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Solution

The fourth proportional to 344.99, 517.56 and 162.28 is: 243.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.99 : 517.56 = 162.28 : x
  2. Step 2: Convert to fraction form
    344.99/517.56 = 162.28/x
  3. Step 3: Cross multiply
    344.99x = 517.56 × 162.28
  4. Step 4: Simplify right side
    344.99x = 83,989.68
  5. Step 5: Solve for x
    x = 83,989.68/344.99
  6. Step 6: Final answer
    x = 243.46

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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.