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Finding the Fourth Proportional to 540.91, 811.42 and 175.80

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Solution

The fourth proportional to 540.91, 811.42 and 175.80 is: 263.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.91 : 811.42 = 175.80 : x
  2. Step 2: Convert to fraction form
    540.91/811.42 = 175.80/x
  3. Step 3: Cross multiply
    540.91x = 811.42 × 175.80
  4. Step 4: Simplify right side
    540.91x = 142,650.24
  5. Step 5: Solve for x
    x = 142,650.24/540.91
  6. Step 6: Final answer
    x = 263.72

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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.