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Finding the Fourth Proportional to 617.36, 926.48 and 292.70

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Solution

The fourth proportional to 617.36, 926.48 and 292.70 is: 439.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.36 : 926.48 = 292.70 : x
  2. Step 2: Convert to fraction form
    617.36/926.48 = 292.70/x
  3. Step 3: Cross multiply
    617.36x = 926.48 × 292.70
  4. Step 4: Simplify right side
    617.36x = 271,183.74
  5. Step 5: Solve for x
    x = 271,183.74/617.36
  6. Step 6: Final answer
    x = 439.27

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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.