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Finding the Fourth Proportional to 540.16, 810.22 and 251.52

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Solution

The fourth proportional to 540.16, 810.22 and 251.52 is: 377.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.16 : 810.22 = 251.52 : x
  2. Step 2: Convert to fraction form
    540.16/810.22 = 251.52/x
  3. Step 3: Cross multiply
    540.16x = 810.22 × 251.52
  4. Step 4: Simplify right side
    540.16x = 203,786.53
  5. Step 5: Solve for x
    x = 203,786.53/540.16
  6. Step 6: Final answer
    x = 377.27

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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.