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Finding the Fourth Proportional to 245.66, 366.15 and 231.99

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Solution

The fourth proportional to 245.66, 366.15 and 231.99 is: 345.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.66 : 366.15 = 231.99 : x
  2. Step 2: Convert to fraction form
    245.66/366.15 = 231.99/x
  3. Step 3: Cross multiply
    245.66x = 366.15 × 231.99
  4. Step 4: Simplify right side
    245.66x = 84,943.14
  5. Step 5: Solve for x
    x = 84,943.14/245.66
  6. Step 6: Final answer
    x = 345.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.