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Finding the Fourth Proportional to 526.05, 789.62 and 252.27

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Solution

The fourth proportional to 526.05, 789.62 and 252.27 is: 378.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.05 : 789.62 = 252.27 : x
  2. Step 2: Convert to fraction form
    526.05/789.62 = 252.27/x
  3. Step 3: Cross multiply
    526.05x = 789.62 × 252.27
  4. Step 4: Simplify right side
    526.05x = 199,196.18
  5. Step 5: Solve for x
    x = 199,196.18/526.05
  6. Step 6: Final answer
    x = 378.66

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Half scale
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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.