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Finding the Fourth Proportional to 359.54, 496.18 and 228.55

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Solution

The fourth proportional to 359.54, 496.18 and 228.55 is: 315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    359.54 : 496.18 = 228.55 : x
  2. Step 2: Convert to fraction form
    359.54/496.18 = 228.55/x
  3. Step 3: Cross multiply
    359.54x = 496.18 × 228.55
  4. Step 4: Simplify right side
    359.54x = 113,400.98
  5. Step 5: Solve for x
    x = 113,400.98/359.54
  6. Step 6: Final answer
    x = 315.40

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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.