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Finding the Fourth Proportional to 503.78, 694.83 and 364.35

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Solution

The fourth proportional to 503.78, 694.83 and 364.35 is: 502.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.78 : 694.83 = 364.35 : x
  2. Step 2: Convert to fraction form
    503.78/694.83 = 364.35/x
  3. Step 3: Cross multiply
    503.78x = 694.83 × 364.35
  4. Step 4: Simplify right side
    503.78x = 253,165.28
  5. Step 5: Solve for x
    x = 253,165.28/503.78
  6. Step 6: Final answer
    x = 502.54

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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.