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Finding the Fourth Proportional to 612.44, 845.24 and 376.32

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Solution

The fourth proportional to 612.44, 845.24 and 376.32 is: 519.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.44 : 845.24 = 376.32 : x
  2. Step 2: Convert to fraction form
    612.44/845.24 = 376.32/x
  3. Step 3: Cross multiply
    612.44x = 845.24 × 376.32
  4. Step 4: Simplify right side
    612.44x = 318,080.72
  5. Step 5: Solve for x
    x = 318,080.72/612.44
  6. Step 6: Final answer
    x = 519.37

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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.