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Finding the Fourth Proportional to 617.63, 926.37 and 293.22

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Solution

The fourth proportional to 617.63, 926.37 and 293.22 is: 439.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.63 : 926.37 = 293.22 : x
  2. Step 2: Convert to fraction form
    617.63/926.37 = 293.22/x
  3. Step 3: Cross multiply
    617.63x = 926.37 × 293.22
  4. Step 4: Simplify right side
    617.63x = 271,630.21
  5. Step 5: Solve for x
    x = 271,630.21/617.63
  6. Step 6: Final answer
    x = 439.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.