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Finding the Fourth Proportional to 513.89, 770.84 and 167.23

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Solution

The fourth proportional to 513.89, 770.84 and 167.23 is: 250.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    513.89 : 770.84 = 167.23 : x
  2. Step 2: Convert to fraction form
    513.89/770.84 = 167.23/x
  3. Step 3: Cross multiply
    513.89x = 770.84 × 167.23
  4. Step 4: Simplify right side
    513.89x = 128,904.93
  5. Step 5: Solve for x
    x = 128,904.93/513.89
  6. Step 6: Final answer
    x = 250.84

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Double scale
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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.