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Finding the Fourth Proportional to 540.52, 810.15 and 263.01

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Solution

The fourth proportional to 540.52, 810.15 and 263.01 is: 394.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.52 : 810.15 = 263.01 : x
  2. Step 2: Convert to fraction form
    540.52/810.15 = 263.01/x
  3. Step 3: Cross multiply
    540.52x = 810.15 × 263.01
  4. Step 4: Simplify right side
    540.52x = 213,077.66
  5. Step 5: Solve for x
    x = 213,077.66/540.52
  6. Step 6: Final answer
    x = 394.21

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Double scale
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Similar ratio
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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.