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Finding the Fourth Proportional to 344.95, 516.69 and 162.49

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Solution

The fourth proportional to 344.95, 516.69 and 162.49 is: 243.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.95 : 516.69 = 162.49 : x
  2. Step 2: Convert to fraction form
    344.95/516.69 = 162.49/x
  3. Step 3: Cross multiply
    344.95x = 516.69 × 162.49
  4. Step 4: Simplify right side
    344.95x = 83,956.96
  5. Step 5: Solve for x
    x = 83,956.96/344.95
  6. Step 6: Final answer
    x = 243.39

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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.