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Finding the Fourth Proportional to 507.22, 761.04 and 263.92

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Solution

The fourth proportional to 507.22, 761.04 and 263.92 is: 395.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.22 : 761.04 = 263.92 : x
  2. Step 2: Convert to fraction form
    507.22/761.04 = 263.92/x
  3. Step 3: Cross multiply
    507.22x = 761.04 × 263.92
  4. Step 4: Simplify right side
    507.22x = 200,853.68
  5. Step 5: Solve for x
    x = 200,853.68/507.22
  6. Step 6: Final answer
    x = 395.99

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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.