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Finding the Fourth Proportional to 473.43, 653.42 and 276.97

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Solution

The fourth proportional to 473.43, 653.42 and 276.97 is: 382.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.43 : 653.42 = 276.97 : x
  2. Step 2: Convert to fraction form
    473.43/653.42 = 276.97/x
  3. Step 3: Cross multiply
    473.43x = 653.42 × 276.97
  4. Step 4: Simplify right side
    473.43x = 180,977.74
  5. Step 5: Solve for x
    x = 180,977.74/473.43
  6. Step 6: Final answer
    x = 382.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.