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Finding the Fourth Proportional to 375.68, 563.81 and 245.64

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Solution

The fourth proportional to 375.68, 563.81 and 245.64 is: 368.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.68 : 563.81 = 245.64 : x
  2. Step 2: Convert to fraction form
    375.68/563.81 = 245.64/x
  3. Step 3: Cross multiply
    375.68x = 563.81 × 245.64
  4. Step 4: Simplify right side
    375.68x = 138,494.29
  5. Step 5: Solve for x
    x = 138,494.29/375.68
  6. Step 6: Final answer
    x = 368.65

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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.