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Finding the Fourth Proportional to 540.57, 810.03 and 247.92

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Solution

The fourth proportional to 540.57, 810.03 and 247.92 is: 371.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.57 : 810.03 = 247.92 : x
  2. Step 2: Convert to fraction form
    540.57/810.03 = 247.92/x
  3. Step 3: Cross multiply
    540.57x = 810.03 × 247.92
  4. Step 4: Simplify right side
    540.57x = 200,822.64
  5. Step 5: Solve for x
    x = 200,822.64/540.57
  6. Step 6: Final answer
    x = 371.50

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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.