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Finding the Fourth Proportional to 333.43, 500.15 and 276.31

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Solution

The fourth proportional to 333.43, 500.15 and 276.31 is: 414.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.43 : 500.15 = 276.31 : x
  2. Step 2: Convert to fraction form
    333.43/500.15 = 276.31/x
  3. Step 3: Cross multiply
    333.43x = 500.15 × 276.31
  4. Step 4: Simplify right side
    333.43x = 138,196.45
  5. Step 5: Solve for x
    x = 138,196.45/333.43
  6. Step 6: Final answer
    x = 414.47

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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.