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Finding the Fourth Proportional to 344.49, 515.82 and 190.14

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Solution

The fourth proportional to 344.49, 515.82 and 190.14 is: 284.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.49 : 515.82 = 190.14 : x
  2. Step 2: Convert to fraction form
    344.49/515.82 = 190.14/x
  3. Step 3: Cross multiply
    344.49x = 515.82 × 190.14
  4. Step 4: Simplify right side
    344.49x = 98,078.01
  5. Step 5: Solve for x
    x = 98,078.01/344.49
  6. Step 6: Final answer
    x = 284.70

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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.