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Finding the Fourth Proportional to 344.29, 515.95 and 190.29

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Solution

The fourth proportional to 344.29, 515.95 and 190.29 is: 285.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.29 : 515.95 = 190.29 : x
  2. Step 2: Convert to fraction form
    344.29/515.95 = 190.29/x
  3. Step 3: Cross multiply
    344.29x = 515.95 × 190.29
  4. Step 4: Simplify right side
    344.29x = 98,180.13
  5. Step 5: Solve for x
    x = 98,180.13/344.29
  6. Step 6: Final answer
    x = 285.17

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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.