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Finding the Fourth Proportional to 640.52, 883.90 and 364.52

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Solution

The fourth proportional to 640.52, 883.90 and 364.52 is: 503.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    640.52 : 883.90 = 364.52 : x
  2. Step 2: Convert to fraction form
    640.52/883.90 = 364.52/x
  3. Step 3: Cross multiply
    640.52x = 883.90 × 364.52
  4. Step 4: Simplify right side
    640.52x = 322,199.23
  5. Step 5: Solve for x
    x = 322,199.23/640.52
  6. Step 6: Final answer
    x = 503.03

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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.