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Finding the Fourth Proportional to 140.41, 210.45 and 95.00

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Solution

The fourth proportional to 140.41, 210.45 and 95.00 is: 142.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140.41 : 210.45 = 95.00 : x
  2. Step 2: Convert to fraction form
    140.41/210.45 = 95.00/x
  3. Step 3: Cross multiply
    140.41x = 210.45 × 95.00
  4. Step 4: Simplify right side
    140.41x = 19,991.70
  5. Step 5: Solve for x
    x = 19,991.70/140.41
  6. Step 6: Final answer
    x = 142.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.