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Finding the Fourth Proportional to 525.76, 788.07 and 251.27

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Solution

The fourth proportional to 525.76, 788.07 and 251.27 is: 376.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.76 : 788.07 = 251.27 : x
  2. Step 2: Convert to fraction form
    525.76/788.07 = 251.27/x
  3. Step 3: Cross multiply
    525.76x = 788.07 × 251.27
  4. Step 4: Simplify right side
    525.76x = 198,015.04
  5. Step 5: Solve for x
    x = 198,015.04/525.76
  6. Step 6: Final answer
    x = 376.63

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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.