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Finding the Fourth Proportional to 552.84, 829.47 and 275.31

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Solution

The fourth proportional to 552.84, 829.47 and 275.31 is: 413.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.84 : 829.47 = 275.31 : x
  2. Step 2: Convert to fraction form
    552.84/829.47 = 275.31/x
  3. Step 3: Cross multiply
    552.84x = 829.47 × 275.31
  4. Step 4: Simplify right side
    552.84x = 228,361.39
  5. Step 5: Solve for x
    x = 228,361.39/552.84
  6. Step 6: Final answer
    x = 413.07

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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.