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Finding the Fourth Proportional to 633.09, 949.55 and 170.91

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Solution

The fourth proportional to 633.09, 949.55 and 170.91 is: 256.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.09 : 949.55 = 170.91 : x
  2. Step 2: Convert to fraction form
    633.09/949.55 = 170.91/x
  3. Step 3: Cross multiply
    633.09x = 949.55 × 170.91
  4. Step 4: Simplify right side
    633.09x = 162,287.22
  5. Step 5: Solve for x
    x = 162,287.22/633.09
  6. Step 6: Final answer
    x = 256.34

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1.5x scale

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.