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Finding the Fourth Proportional to 214.05, 295.29 and 135.47

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Solution

The fourth proportional to 214.05, 295.29 and 135.47 is: 186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.05 : 295.29 = 135.47 : x
  2. Step 2: Convert to fraction form
    214.05/295.29 = 135.47/x
  3. Step 3: Cross multiply
    214.05x = 295.29 × 135.47
  4. Step 4: Simplify right side
    214.05x = 40,001.46
  5. Step 5: Solve for x
    x = 40,001.46/214.05
  6. Step 6: Final answer
    x = 186.88

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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.