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Finding the Fourth Proportional to 552.74, 763.07 and 376.63

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Solution

The fourth proportional to 552.74, 763.07 and 376.63 is: 519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.74 : 763.07 = 376.63 : x
  2. Step 2: Convert to fraction form
    552.74/763.07 = 376.63/x
  3. Step 3: Cross multiply
    552.74x = 763.07 × 376.63
  4. Step 4: Simplify right side
    552.74x = 287,391.26
  5. Step 5: Solve for x
    x = 287,391.26/552.74
  6. Step 6: Final answer
    x = 519.94

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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.