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Finding the Fourth Proportional to 164.32, 228.36 and 162.56

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Solution

The fourth proportional to 164.32, 228.36 and 162.56 is: 225.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.32 : 228.36 = 162.56 : x
  2. Step 2: Convert to fraction form
    164.32/228.36 = 162.56/x
  3. Step 3: Cross multiply
    164.32x = 228.36 × 162.56
  4. Step 4: Simplify right side
    164.32x = 37,122.20
  5. Step 5: Solve for x
    x = 37,122.20/164.32
  6. Step 6: Final answer
    x = 225.91

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.