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Finding the Fourth Proportional to 162.55, 224.13 and 144.10

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Solution

The fourth proportional to 162.55, 224.13 and 144.10 is: 198.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.55 : 224.13 = 144.10 : x
  2. Step 2: Convert to fraction form
    162.55/224.13 = 144.10/x
  3. Step 3: Cross multiply
    162.55x = 224.13 × 144.10
  4. Step 4: Simplify right side
    162.55x = 32,297.13
  5. Step 5: Solve for x
    x = 32,297.13/162.55
  6. Step 6: Final answer
    x = 198.69

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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.