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Finding the Fourth Proportional to 336.72, 504.70 and 169.86

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Solution

The fourth proportional to 336.72, 504.70 and 169.86 is: 254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.72 : 504.70 = 169.86 : x
  2. Step 2: Convert to fraction form
    336.72/504.70 = 169.86/x
  3. Step 3: Cross multiply
    336.72x = 504.70 × 169.86
  4. Step 4: Simplify right side
    336.72x = 85,728.34
  5. Step 5: Solve for x
    x = 85,728.34/336.72
  6. Step 6: Final answer
    x = 254.60

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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.