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Finding the Fourth Proportional to 515.43, 773.46 and 461.97

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Solution

The fourth proportional to 515.43, 773.46 and 461.97 is: 693.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    515.43 : 773.46 = 461.97 : x
  2. Step 2: Convert to fraction form
    515.43/773.46 = 461.97/x
  3. Step 3: Cross multiply
    515.43x = 773.46 × 461.97
  4. Step 4: Simplify right side
    515.43x = 357,315.32
  5. Step 5: Solve for x
    x = 357,315.32/515.43
  6. Step 6: Final answer
    x = 693.24

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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.