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Finding the Fourth Proportional to 621.97, 933.10 and 348.25

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Solution

The fourth proportional to 621.97, 933.10 and 348.25 is: 522.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    621.97 : 933.10 = 348.25 : x
  2. Step 2: Convert to fraction form
    621.97/933.10 = 348.25/x
  3. Step 3: Cross multiply
    621.97x = 933.10 × 348.25
  4. Step 4: Simplify right side
    621.97x = 324,950.18
  5. Step 5: Solve for x
    x = 324,950.18/621.97
  6. Step 6: Final answer
    x = 522.46

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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.