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Finding the Fourth Proportional to 270.43, 405.16 and 184.51

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Solution

The fourth proportional to 270.43, 405.16 and 184.51 is: 276.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.43 : 405.16 = 184.51 : x
  2. Step 2: Convert to fraction form
    270.43/405.16 = 184.51/x
  3. Step 3: Cross multiply
    270.43x = 405.16 × 184.51
  4. Step 4: Simplify right side
    270.43x = 74,753.58
  5. Step 5: Solve for x
    x = 74,753.58/270.43
  6. Step 6: Final answer
    x = 276.43

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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.