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Finding the Fourth Proportional to 612.12, 845.02 and 350.09

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Solution

The fourth proportional to 612.12, 845.02 and 350.09 is: 483.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.12 : 845.02 = 350.09 : x
  2. Step 2: Convert to fraction form
    612.12/845.02 = 350.09/x
  3. Step 3: Cross multiply
    612.12x = 845.02 × 350.09
  4. Step 4: Simplify right side
    612.12x = 295,827.08
  5. Step 5: Solve for x
    x = 295,827.08/612.12
  6. Step 6: Final answer
    x = 483.28

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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.