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Finding the Fourth Proportional to 540.72, 811.11 and 175.54

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Solution

The fourth proportional to 540.72, 811.11 and 175.54 is: 263.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.72 : 811.11 = 175.54 : x
  2. Step 2: Convert to fraction form
    540.72/811.11 = 175.54/x
  3. Step 3: Cross multiply
    540.72x = 811.11 × 175.54
  4. Step 4: Simplify right side
    540.72x = 142,380.22
  5. Step 5: Solve for x
    x = 142,380.22/540.72
  6. Step 6: Final answer
    x = 263.32

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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.