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Finding the Fourth Proportional to 262.50, 361.60 and 245.49

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Solution

The fourth proportional to 262.50, 361.60 and 245.49 is: 338.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.50 : 361.60 = 245.49 : x
  2. Step 2: Convert to fraction form
    262.50/361.60 = 245.49/x
  3. Step 3: Cross multiply
    262.50x = 361.60 × 245.49
  4. Step 4: Simplify right side
    262.50x = 88,767.96
  5. Step 5: Solve for x
    x = 88,767.96/262.50
  6. Step 6: Final answer
    x = 338.16

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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.