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Finding the Fourth Proportional to 359.52, 538.12 and 185.95

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Solution

The fourth proportional to 359.52, 538.12 and 185.95 is: 278.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.52 : 538.12 = 185.95 : x
  2. Step 2: Convert to fraction form
    359.52/538.12 = 185.95/x
  3. Step 3: Cross multiply
    359.52x = 538.12 × 185.95
  4. Step 4: Simplify right side
    359.52x = 100,060.77
  5. Step 5: Solve for x
    x = 100,060.77/359.52
  6. Step 6: Final answer
    x = 278.32

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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.