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Finding the Fourth Proportional to 177.04, 266.54 and 123.28

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Solution

The fourth proportional to 177.04, 266.54 and 123.28 is: 185.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.04 : 266.54 = 123.28 : x
  2. Step 2: Convert to fraction form
    177.04/266.54 = 123.28/x
  3. Step 3: Cross multiply
    177.04x = 266.54 × 123.28
  4. Step 4: Simplify right side
    177.04x = 32,859.05
  5. Step 5: Solve for x
    x = 32,859.05/177.04
  6. Step 6: Final answer
    x = 185.60

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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.