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Finding the Fourth Proportional to 214.48, 295.84 and 131.56

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Solution

The fourth proportional to 214.48, 295.84 and 131.56 is: 181.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.48 : 295.84 = 131.56 : x
  2. Step 2: Convert to fraction form
    214.48/295.84 = 131.56/x
  3. Step 3: Cross multiply
    214.48x = 295.84 × 131.56
  4. Step 4: Simplify right side
    214.48x = 38,920.71
  5. Step 5: Solve for x
    x = 38,920.71/214.48
  6. Step 6: Final answer
    x = 181.47

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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.