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Finding the Fourth Proportional to 162.10, 242.82 and 116.26

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Solution

The fourth proportional to 162.10, 242.82 and 116.26 is: 174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.10 : 242.82 = 116.26 : x
  2. Step 2: Convert to fraction form
    162.10/242.82 = 116.26/x
  3. Step 3: Cross multiply
    162.10x = 242.82 × 116.26
  4. Step 4: Simplify right side
    162.10x = 28,230.25
  5. Step 5: Solve for x
    x = 28,230.25/162.10
  6. Step 6: Final answer
    x = 174.15

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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.