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Finding the Fourth Proportional to 445.37, 668.32 and 171.50

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Solution

The fourth proportional to 445.37, 668.32 and 171.50 is: 257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.37 : 668.32 = 171.50 : x
  2. Step 2: Convert to fraction form
    445.37/668.32 = 171.50/x
  3. Step 3: Cross multiply
    445.37x = 668.32 × 171.50
  4. Step 4: Simplify right side
    445.37x = 114,613.11
  5. Step 5: Solve for x
    x = 114,613.11/445.37
  6. Step 6: Final answer
    x = 257.35

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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.