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Finding the Fourth Proportional to 358.86, 538.29 and 327.54

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Solution

The fourth proportional to 358.86, 538.29 and 327.54 is: 491.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.86 : 538.29 = 327.54 : x
  2. Step 2: Convert to fraction form
    358.86/538.29 = 327.54/x
  3. Step 3: Cross multiply
    358.86x = 538.29 × 327.54
  4. Step 4: Simplify right side
    358.86x = 176,311.51
  5. Step 5: Solve for x
    x = 176,311.51/358.86
  6. Step 6: Final answer
    x = 491.31

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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.