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Finding the Fourth Proportional to 303.58, 454.96 and 159.40

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Solution

The fourth proportional to 303.58, 454.96 and 159.40 is: 238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.58 : 454.96 = 159.40 : x
  2. Step 2: Convert to fraction form
    303.58/454.96 = 159.40/x
  3. Step 3: Cross multiply
    303.58x = 454.96 × 159.40
  4. Step 4: Simplify right side
    303.58x = 72,520.62
  5. Step 5: Solve for x
    x = 72,520.62/303.58
  6. Step 6: Final answer
    x = 238.88

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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.