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Finding the Fourth Proportional to 247.29, 370.40 and 230.82

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Solution

The fourth proportional to 247.29, 370.40 and 230.82 is: 345.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.29 : 370.40 = 230.82 : x
  2. Step 2: Convert to fraction form
    247.29/370.40 = 230.82/x
  3. Step 3: Cross multiply
    247.29x = 370.40 × 230.82
  4. Step 4: Simplify right side
    247.29x = 85,495.50
  5. Step 5: Solve for x
    x = 85,495.50/247.29
  6. Step 6: Final answer
    x = 345.73

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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.