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Finding the Fourth Proportional to 298.40, 447.04 and 230.08

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Solution

The fourth proportional to 298.40, 447.04 and 230.08 is: 344.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.40 : 447.04 = 230.08 : x
  2. Step 2: Convert to fraction form
    298.40/447.04 = 230.08/x
  3. Step 3: Cross multiply
    298.40x = 447.04 × 230.08
  4. Step 4: Simplify right side
    298.40x = 102,854.96
  5. Step 5: Solve for x
    x = 102,854.96/298.40
  6. Step 6: Final answer
    x = 344.69

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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.