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Finding the Fourth Proportional to 550.49, 754.05 and 543.47

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Solution

The fourth proportional to 550.49, 754.05 and 543.47 is: 744.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.49 : 754.05 = 543.47 : x
  2. Step 2: Convert to fraction form
    550.49/754.05 = 543.47/x
  3. Step 3: Cross multiply
    550.49x = 754.05 × 543.47
  4. Step 4: Simplify right side
    550.49x = 409,803.55
  5. Step 5: Solve for x
    x = 409,803.55/550.49
  6. Step 6: Final answer
    x = 744.43

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.