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Finding the Fourth Proportional to 612.14, 844.58 and 376.09

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Solution

The fourth proportional to 612.14, 844.58 and 376.09 is: 518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.14 : 844.58 = 376.09 : x
  2. Step 2: Convert to fraction form
    612.14/844.58 = 376.09/x
  3. Step 3: Cross multiply
    612.14x = 844.58 × 376.09
  4. Step 4: Simplify right side
    612.14x = 317,636.92
  5. Step 5: Solve for x
    x = 317,636.92/612.14
  6. Step 6: Final answer
    x = 518.90

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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.