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Finding the Fourth Proportional to 162.24, 244.32 and 135.36

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Solution

The fourth proportional to 162.24, 244.32 and 135.36 is: 203.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.24 : 244.32 = 135.36 : x
  2. Step 2: Convert to fraction form
    162.24/244.32 = 135.36/x
  3. Step 3: Cross multiply
    162.24x = 244.32 × 135.36
  4. Step 4: Simplify right side
    162.24x = 33,071.16
  5. Step 5: Solve for x
    x = 33,071.16/162.24
  6. Step 6: Final answer
    x = 203.84

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.