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Finding the Fourth Proportional to 214.13, 295.43 and 126.79

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Solution

The fourth proportional to 214.13, 295.43 and 126.79 is: 174.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.13 : 295.43 = 126.79 : x
  2. Step 2: Convert to fraction form
    214.13/295.43 = 126.79/x
  3. Step 3: Cross multiply
    214.13x = 295.43 × 126.79
  4. Step 4: Simplify right side
    214.13x = 37,457.57
  5. Step 5: Solve for x
    x = 37,457.57/214.13
  6. Step 6: Final answer
    x = 174.93

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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.