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Finding the Fourth Proportional to 364.91, 546.89 and 159.20

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Solution

The fourth proportional to 364.91, 546.89 and 159.20 is: 238.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.91 : 546.89 = 159.20 : x
  2. Step 2: Convert to fraction form
    364.91/546.89 = 159.20/x
  3. Step 3: Cross multiply
    364.91x = 546.89 × 159.20
  4. Step 4: Simplify right side
    364.91x = 87,063.41
  5. Step 5: Solve for x
    x = 87,063.41/364.91
  6. Step 6: Final answer
    x = 238.59

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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.