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Finding the Fourth Proportional to 227.81, 341.76 and 83.53

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Solution

The fourth proportional to 227.81, 341.76 and 83.53 is: 125.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.81 : 341.76 = 83.53 : x
  2. Step 2: Convert to fraction form
    227.81/341.76 = 83.53/x
  3. Step 3: Cross multiply
    227.81x = 341.76 × 83.53
  4. Step 4: Simplify right side
    227.81x = 28,547.21
  5. Step 5: Solve for x
    x = 28,547.21/227.81
  6. Step 6: Final answer
    x = 125.31

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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.