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Finding the Fourth Proportional to 435.15, 652.33 and 161.05

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Solution

The fourth proportional to 435.15, 652.33 and 161.05 is: 241.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.15 : 652.33 = 161.05 : x
  2. Step 2: Convert to fraction form
    435.15/652.33 = 161.05/x
  3. Step 3: Cross multiply
    435.15x = 652.33 × 161.05
  4. Step 4: Simplify right side
    435.15x = 105,057.75
  5. Step 5: Solve for x
    x = 105,057.75/435.15
  6. Step 6: Final answer
    x = 241.43

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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.