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Finding the Fourth Proportional to 359.97, 540.15 and 177.38

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Solution

The fourth proportional to 359.97, 540.15 and 177.38 is: 266.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.97 : 540.15 = 177.38 : x
  2. Step 2: Convert to fraction form
    359.97/540.15 = 177.38/x
  3. Step 3: Cross multiply
    359.97x = 540.15 × 177.38
  4. Step 4: Simplify right side
    359.97x = 95,811.81
  5. Step 5: Solve for x
    x = 95,811.81/359.97
  6. Step 6: Final answer
    x = 266.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.