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Finding the Fourth Proportional to 151.04, 208.22 and 104.34

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Solution

The fourth proportional to 151.04, 208.22 and 104.34 is: 143.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.04 : 208.22 = 104.34 : x
  2. Step 2: Convert to fraction form
    151.04/208.22 = 104.34/x
  3. Step 3: Cross multiply
    151.04x = 208.22 × 104.34
  4. Step 4: Simplify right side
    151.04x = 21,725.35
  5. Step 5: Solve for x
    x = 21,725.35/151.04
  6. Step 6: Final answer
    x = 143.84

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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.