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Finding the Fourth Proportional to 903.29, 1,351.50 and 551.99

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Solution

The fourth proportional to 903.29, 1,351.50 and 551.99 is: 825.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    903.29 : 1,351.50 = 551.99 : x
  2. Step 2: Convert to fraction form
    903.29/1,351.50 = 551.99/x
  3. Step 3: Cross multiply
    903.29x = 1,351.50 × 551.99
  4. Step 4: Simplify right side
    903.29x = 746,007.73
  5. Step 5: Solve for x
    x = 746,007.73/903.29
  6. Step 6: Final answer
    x = 825.88

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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.