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Finding the Fourth Proportional to 298.62, 448.36 and 168.86

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Solution

The fourth proportional to 298.62, 448.36 and 168.86 is: 253.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.62 : 448.36 = 168.86 : x
  2. Step 2: Convert to fraction form
    298.62/448.36 = 168.86/x
  3. Step 3: Cross multiply
    298.62x = 448.36 × 168.86
  4. Step 4: Simplify right side
    298.62x = 75,710.07
  5. Step 5: Solve for x
    x = 75,710.07/298.62
  6. Step 6: Final answer
    x = 253.53

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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.