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Finding the Fourth Proportional to 170.01, 234.09 and 156.96

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Solution

The fourth proportional to 170.01, 234.09 and 156.96 is: 216.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.01 : 234.09 = 156.96 : x
  2. Step 2: Convert to fraction form
    170.01/234.09 = 156.96/x
  3. Step 3: Cross multiply
    170.01x = 234.09 × 156.96
  4. Step 4: Simplify right side
    170.01x = 36,742.77
  5. Step 5: Solve for x
    x = 36,742.77/170.01
  6. Step 6: Final answer
    x = 216.12

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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.