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Finding the Fourth Proportional to 161.00, 240.33 and 141.54

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Solution

The fourth proportional to 161.00, 240.33 and 141.54 is: 211.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.00 : 240.33 = 141.54 : x
  2. Step 2: Convert to fraction form
    161.00/240.33 = 141.54/x
  3. Step 3: Cross multiply
    161.00x = 240.33 × 141.54
  4. Step 4: Simplify right side
    161.00x = 34,014.40
  5. Step 5: Solve for x
    x = 34,014.40/161.00
  6. Step 6: Final answer
    x = 211.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.