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Finding the Fourth Proportional to 633.42, 950.10 and 171.20

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Solution

The fourth proportional to 633.42, 950.10 and 171.20 is: 256.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.42 : 950.10 = 171.20 : x
  2. Step 2: Convert to fraction form
    633.42/950.10 = 171.20/x
  3. Step 3: Cross multiply
    633.42x = 950.10 × 171.20
  4. Step 4: Simplify right side
    633.42x = 162,653.51
  5. Step 5: Solve for x
    x = 162,653.51/633.42
  6. Step 6: Final answer
    x = 256.79

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Similar ratio
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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.