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Finding the Fourth Proportional to 245.45, 338.91 and 183.98

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Solution

The fourth proportional to 245.45, 338.91 and 183.98 is: 254.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.45 : 338.91 = 183.98 : x
  2. Step 2: Convert to fraction form
    245.45/338.91 = 183.98/x
  3. Step 3: Cross multiply
    245.45x = 338.91 × 183.98
  4. Step 4: Simplify right side
    245.45x = 62,352.66
  5. Step 5: Solve for x
    x = 62,352.66/245.45
  6. Step 6: Final answer
    x = 254.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.