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Finding the Fourth Proportional to 214.53, 295.99 and 127.20

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Solution

The fourth proportional to 214.53, 295.99 and 127.20 is: 175.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.53 : 295.99 = 127.20 : x
  2. Step 2: Convert to fraction form
    214.53/295.99 = 127.20/x
  3. Step 3: Cross multiply
    214.53x = 295.99 × 127.20
  4. Step 4: Simplify right side
    214.53x = 37,649.93
  5. Step 5: Solve for x
    x = 37,649.93/214.53
  6. Step 6: Final answer
    x = 175.50

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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.