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Finding the Fourth Proportional to 164.02, 225.84 and 157.54

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Solution

The fourth proportional to 164.02, 225.84 and 157.54 is: 216.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.02 : 225.84 = 157.54 : x
  2. Step 2: Convert to fraction form
    164.02/225.84 = 157.54/x
  3. Step 3: Cross multiply
    164.02x = 225.84 × 157.54
  4. Step 4: Simplify right side
    164.02x = 35,578.83
  5. Step 5: Solve for x
    x = 35,578.83/164.02
  6. Step 6: Final answer
    x = 216.92

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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.