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Finding the Fourth Proportional to 267.23, 400.02 and 145.32

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Solution

The fourth proportional to 267.23, 400.02 and 145.32 is: 217.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.23 : 400.02 = 145.32 : x
  2. Step 2: Convert to fraction form
    267.23/400.02 = 145.32/x
  3. Step 3: Cross multiply
    267.23x = 400.02 × 145.32
  4. Step 4: Simplify right side
    267.23x = 58,130.91
  5. Step 5: Solve for x
    x = 58,130.91/267.23
  6. Step 6: Final answer
    x = 217.54

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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.