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Finding the Fourth Proportional to 164.13, 226.70 and 127.47

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Solution

The fourth proportional to 164.13, 226.70 and 127.47 is: 176.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.13 : 226.70 = 127.47 : x
  2. Step 2: Convert to fraction form
    164.13/226.70 = 127.47/x
  3. Step 3: Cross multiply
    164.13x = 226.70 × 127.47
  4. Step 4: Simplify right side
    164.13x = 28,897.45
  5. Step 5: Solve for x
    x = 28,897.45/164.13
  6. Step 6: Final answer
    x = 176.06

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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.