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Finding the Fourth Proportional to 617.79, 926.44 and 227.65

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Solution

The fourth proportional to 617.79, 926.44 and 227.65 is: 341.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.79 : 926.44 = 227.65 : x
  2. Step 2: Convert to fraction form
    617.79/926.44 = 227.65/x
  3. Step 3: Cross multiply
    617.79x = 926.44 × 227.65
  4. Step 4: Simplify right side
    617.79x = 210,904.07
  5. Step 5: Solve for x
    x = 210,904.07/617.79
  6. Step 6: Final answer
    x = 341.38

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Similar ratio
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1.5x scale

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.