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Finding the Fourth Proportional to 245, 369.68 and 230.96

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Solution

The fourth proportional to 245, 369.68 and 230.96 is: 348.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    245 : 369.68 = 230.96 : x
  2. Step 2: Convert to fraction form
    245/369.68 = 230.96/x
  3. Step 3: Cross multiply
    245x = 369.68 × 230.96
  4. Step 4: Simplify right side
    245x = 85,381.29
  5. Step 5: Solve for x
    x = 85,381.29/245
  6. Step 6: Final answer
    x = 348.50

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.