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Finding the Fourth Proportional to 164.36, 247.41 and 149.48

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Solution

The fourth proportional to 164.36, 247.41 and 149.48 is: 225.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.36 : 247.41 = 149.48 : x
  2. Step 2: Convert to fraction form
    164.36/247.41 = 149.48/x
  3. Step 3: Cross multiply
    164.36x = 247.41 × 149.48
  4. Step 4: Simplify right side
    164.36x = 36,981.05
  5. Step 5: Solve for x
    x = 36,981.05/164.36
  6. Step 6: Final answer
    x = 225.01

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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.