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Finding the Fourth Proportional to 375.89, 562.97 and 259.80

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Solution

The fourth proportional to 375.89, 562.97 and 259.80 is: 389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.89 : 562.97 = 259.80 : x
  2. Step 2: Convert to fraction form
    375.89/562.97 = 259.80/x
  3. Step 3: Cross multiply
    375.89x = 562.97 × 259.80
  4. Step 4: Simplify right side
    375.89x = 146,262.37
  5. Step 5: Solve for x
    x = 146,262.37/375.89
  6. Step 6: Final answer
    x = 389.11

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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.