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Finding the Fourth Proportional to 245.03, 367.30 and 82.58

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Solution

The fourth proportional to 245.03, 367.30 and 82.58 is: 123.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.03 : 367.30 = 82.58 : x
  2. Step 2: Convert to fraction form
    245.03/367.30 = 82.58/x
  3. Step 3: Cross multiply
    245.03x = 367.30 × 82.58
  4. Step 4: Simplify right side
    245.03x = 30,331.63
  5. Step 5: Solve for x
    x = 30,331.63/245.03
  6. Step 6: Final answer
    x = 123.79

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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.