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Finding the Fourth Proportional to 214.43, 295.81 and 127.08

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Solution

The fourth proportional to 214.43, 295.81 and 127.08 is: 175.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.43 : 295.81 = 127.08 : x
  2. Step 2: Convert to fraction form
    214.43/295.81 = 127.08/x
  3. Step 3: Cross multiply
    214.43x = 295.81 × 127.08
  4. Step 4: Simplify right side
    214.43x = 37,591.22
  5. Step 5: Solve for x
    x = 37,591.22/214.43
  6. Step 6: Final answer
    x = 175.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.