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Finding the Fourth Proportional to 612.21, 844.95 and 350.22

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Solution

The fourth proportional to 612.21, 844.95 and 350.22 is: 483.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.21 : 844.95 = 350.22 : x
  2. Step 2: Convert to fraction form
    612.21/844.95 = 350.22/x
  3. Step 3: Cross multiply
    612.21x = 844.95 × 350.22
  4. Step 4: Simplify right side
    612.21x = 295,918.39
  5. Step 5: Solve for x
    x = 295,918.39/612.21
  6. Step 6: Final answer
    x = 483.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.