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Finding the Fourth Proportional to 298.28, 446.36 and 176.63

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Solution

The fourth proportional to 298.28, 446.36 and 176.63 is: 264.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.28 : 446.36 = 176.63 : x
  2. Step 2: Convert to fraction form
    298.28/446.36 = 176.63/x
  3. Step 3: Cross multiply
    298.28x = 446.36 × 176.63
  4. Step 4: Simplify right side
    298.28x = 78,840.96
  5. Step 5: Solve for x
    x = 78,840.96/298.28
  6. Step 6: Final answer
    x = 264.32

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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.