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Finding the Fourth Proportional to 612.58, 845.39 and 350.59

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Solution

The fourth proportional to 612.58, 845.39 and 350.59 is: 483.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.58 : 845.39 = 350.59 : x
  2. Step 2: Convert to fraction form
    612.58/845.39 = 350.59/x
  3. Step 3: Cross multiply
    612.58x = 845.39 × 350.59
  4. Step 4: Simplify right side
    612.58x = 296,379.30
  5. Step 5: Solve for x
    x = 296,379.30/612.58
  6. Step 6: Final answer
    x = 483.83

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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.