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Finding the Fourth Proportional to 298.08, 446.16 and 189.48

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Solution

The fourth proportional to 298.08, 446.16 and 189.48 is: 283.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.08 : 446.16 = 189.48 : x
  2. Step 2: Convert to fraction form
    298.08/446.16 = 189.48/x
  3. Step 3: Cross multiply
    298.08x = 446.16 × 189.48
  4. Step 4: Simplify right side
    298.08x = 84,538.40
  5. Step 5: Solve for x
    x = 84,538.40/298.08
  6. Step 6: Final answer
    x = 283.61

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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.