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Finding the Fourth Proportional to 523.82, 722.87 and 290.94

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Solution

The fourth proportional to 523.82, 722.87 and 290.94 is: 401.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.82 : 722.87 = 290.94 : x
  2. Step 2: Convert to fraction form
    523.82/722.87 = 290.94/x
  3. Step 3: Cross multiply
    523.82x = 722.87 × 290.94
  4. Step 4: Simplify right side
    523.82x = 210,310.34
  5. Step 5: Solve for x
    x = 210,310.34/523.82
  6. Step 6: Final answer
    x = 401.50

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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.