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Finding the Fourth Proportional to 844.77, 1,266.28 and 351.45

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Solution

The fourth proportional to 844.77, 1,266.28 and 351.45 is: 526.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.77 : 1,266.28 = 351.45 : x
  2. Step 2: Convert to fraction form
    844.77/1,266.28 = 351.45/x
  3. Step 3: Cross multiply
    844.77x = 1,266.28 × 351.45
  4. Step 4: Simplify right side
    844.77x = 445,028.48
  5. Step 5: Solve for x
    x = 445,028.48/844.77
  6. Step 6: Final answer
    x = 526.80

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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.