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Finding the Fourth Proportional to 346.68, 519.94 and 127.26

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Solution

The fourth proportional to 346.68, 519.94 and 127.26 is: 190.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.68 : 519.94 = 127.26 : x
  2. Step 2: Convert to fraction form
    346.68/519.94 = 127.26/x
  3. Step 3: Cross multiply
    346.68x = 519.94 × 127.26
  4. Step 4: Simplify right side
    346.68x = 66,167.56
  5. Step 5: Solve for x
    x = 66,167.56/346.68
  6. Step 6: Final answer
    x = 190.86

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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.