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Finding the Fourth Proportional to 715.10, 1,071.96 and 227.83

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Solution

The fourth proportional to 715.10, 1,071.96 and 227.83 is: 341.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    715.10 : 1,071.96 = 227.83 : x
  2. Step 2: Convert to fraction form
    715.10/1,071.96 = 227.83/x
  3. Step 3: Cross multiply
    715.10x = 1,071.96 × 227.83
  4. Step 4: Simplify right side
    715.10x = 244,224.65
  5. Step 5: Solve for x
    x = 244,224.65/715.10
  6. Step 6: Final answer
    x = 341.53

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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.