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Finding the Fourth Proportional to 540.89, 811.67 and 267.02

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Solution

The fourth proportional to 540.89, 811.67 and 267.02 is: 400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.89 : 811.67 = 267.02 : x
  2. Step 2: Convert to fraction form
    540.89/811.67 = 267.02/x
  3. Step 3: Cross multiply
    540.89x = 811.67 × 267.02
  4. Step 4: Simplify right side
    540.89x = 216,732.12
  5. Step 5: Solve for x
    x = 216,732.12/540.89
  6. Step 6: Final answer
    x = 400.70

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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.