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Finding the Fourth Proportional to 247.81, 341.74 and 192.53

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Solution

The fourth proportional to 247.81, 341.74 and 192.53 is: 265.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.81 : 341.74 = 192.53 : x
  2. Step 2: Convert to fraction form
    247.81/341.74 = 192.53/x
  3. Step 3: Cross multiply
    247.81x = 341.74 × 192.53
  4. Step 4: Simplify right side
    247.81x = 65,795.20
  5. Step 5: Solve for x
    x = 65,795.20/247.81
  6. Step 6: Final answer
    x = 265.51

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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.