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Finding the Fourth Proportional to 155.01, 214.22 and 141.35

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Solution

The fourth proportional to 155.01, 214.22 and 141.35 is: 195.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    155.01 : 214.22 = 141.35 : x
  2. Step 2: Convert to fraction form
    155.01/214.22 = 141.35/x
  3. Step 3: Cross multiply
    155.01x = 214.22 × 141.35
  4. Step 4: Simplify right side
    155.01x = 30,278.88
  5. Step 5: Solve for x
    x = 30,278.88/155.01
  6. Step 6: Final answer
    x = 195.33

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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.