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Finding the Fourth Proportional to 344.24, 515.47 and 239.98

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Solution

The fourth proportional to 344.24, 515.47 and 239.98 is: 359.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.24 : 515.47 = 239.98 : x
  2. Step 2: Convert to fraction form
    344.24/515.47 = 239.98/x
  3. Step 3: Cross multiply
    344.24x = 515.47 × 239.98
  4. Step 4: Simplify right side
    344.24x = 123,699.19
  5. Step 5: Solve for x
    x = 123,699.19/344.24
  6. Step 6: Final answer
    x = 359.34

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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.