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Finding the Fourth Proportional to 162.55, 224.04 and 118.32

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Solution

The fourth proportional to 162.55, 224.04 and 118.32 is: 163.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.55 : 224.04 = 118.32 : x
  2. Step 2: Convert to fraction form
    162.55/224.04 = 118.32/x
  3. Step 3: Cross multiply
    162.55x = 224.04 × 118.32
  4. Step 4: Simplify right side
    162.55x = 26,508.41
  5. Step 5: Solve for x
    x = 26,508.41/162.55
  6. Step 6: Final answer
    x = 163.08

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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.