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Finding the Fourth Proportional to 214.09, 295.45 and 131.20

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Solution

The fourth proportional to 214.09, 295.45 and 131.20 is: 181.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.09 : 295.45 = 131.20 : x
  2. Step 2: Convert to fraction form
    214.09/295.45 = 131.20/x
  3. Step 3: Cross multiply
    214.09x = 295.45 × 131.20
  4. Step 4: Simplify right side
    214.09x = 38,761.97
  5. Step 5: Solve for x
    x = 38,761.97/214.09
  6. Step 6: Final answer
    x = 181.06

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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.