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Finding the Fourth Proportional to 523.60, 785.67 and 249.64

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Solution

The fourth proportional to 523.60, 785.67 and 249.64 is: 374.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.60 : 785.67 = 249.64 : x
  2. Step 2: Convert to fraction form
    523.60/785.67 = 249.64/x
  3. Step 3: Cross multiply
    523.60x = 785.67 × 249.64
  4. Step 4: Simplify right side
    523.60x = 196,131.76
  5. Step 5: Solve for x
    x = 196,131.76/523.60
  6. Step 6: Final answer
    x = 374.58

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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.