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Finding the Fourth Proportional to 375.63, 563.14 and 259.73

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Solution

The fourth proportional to 375.63, 563.14 and 259.73 is: 389.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.63 : 563.14 = 259.73 : x
  2. Step 2: Convert to fraction form
    375.63/563.14 = 259.73/x
  3. Step 3: Cross multiply
    375.63x = 563.14 × 259.73
  4. Step 4: Simplify right side
    375.63x = 146,264.35
  5. Step 5: Solve for x
    x = 146,264.35/375.63
  6. Step 6: Final answer
    x = 389.38

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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.