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Finding the Fourth Proportional to 227.30, 340.95 and 64.99

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Solution

The fourth proportional to 227.30, 340.95 and 64.99 is: 97.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.30 : 340.95 = 64.99 : x
  2. Step 2: Convert to fraction form
    227.30/340.95 = 64.99/x
  3. Step 3: Cross multiply
    227.30x = 340.95 × 64.99
  4. Step 4: Simplify right side
    227.30x = 22,157.09
  5. Step 5: Solve for x
    x = 22,157.09/227.30
  6. Step 6: Final answer
    x = 97.48

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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.