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Finding the Third Proportional to 360.28 and 540.42

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Solution

The third proportional to 360.28 and 540.42 is: 810.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.28 : 540.42 = 540.42 : x
  2. Step 2: Convert to fraction form
    360.28/540.42 = 540.42/x
  3. Step 3: Cross multiply
    360.28x = 540.42 × 540.42
  4. Step 4: Simplify right side
    360.28x = 292,055.80
  5. Step 5: Solve for x
    x = 292,055.80/360.28
  6. Step 6: Final answer
    x = 810.63

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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.