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Finding the Fourth Proportional to 164.30, 244.70 and 153.92

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Solution

The fourth proportional to 164.30, 244.70 and 153.92 is: 229.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.30 : 244.70 = 153.92 : x
  2. Step 2: Convert to fraction form
    164.30/244.70 = 153.92/x
  3. Step 3: Cross multiply
    164.30x = 244.70 × 153.92
  4. Step 4: Simplify right side
    164.30x = 37,664.22
  5. Step 5: Solve for x
    x = 37,664.22/164.30
  6. Step 6: Final answer
    x = 229.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.