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Finding the Fourth Proportional to 364.24, 502.65 and 198.45

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Solution

The fourth proportional to 364.24, 502.65 and 198.45 is: 273.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.24 : 502.65 = 198.45 : x
  2. Step 2: Convert to fraction form
    364.24/502.65 = 198.45/x
  3. Step 3: Cross multiply
    364.24x = 502.65 × 198.45
  4. Step 4: Simplify right side
    364.24x = 99,750.89
  5. Step 5: Solve for x
    x = 99,750.89/364.24
  6. Step 6: Final answer
    x = 273.86

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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.