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Finding the Fourth Proportional to 504.11, 695.97 and 385.87

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Solution

The fourth proportional to 504.11, 695.97 and 385.87 is: 532.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.11 : 695.97 = 385.87 : x
  2. Step 2: Convert to fraction form
    504.11/695.97 = 385.87/x
  3. Step 3: Cross multiply
    504.11x = 695.97 × 385.87
  4. Step 4: Simplify right side
    504.11x = 268,553.94
  5. Step 5: Solve for x
    x = 268,553.94/504.11
  6. Step 6: Final answer
    x = 532.73

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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.