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Finding the Fourth Proportional to 245.64, 367.68 and 137.10

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Solution

The fourth proportional to 245.64, 367.68 and 137.10 is: 205.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.64 : 367.68 = 137.10 : x
  2. Step 2: Convert to fraction form
    245.64/367.68 = 137.10/x
  3. Step 3: Cross multiply
    245.64x = 367.68 × 137.10
  4. Step 4: Simplify right side
    245.64x = 50,408.93
  5. Step 5: Solve for x
    x = 50,408.93/245.64
  6. Step 6: Final answer
    x = 205.21

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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.