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Finding the Fourth Proportional to 648.25, 894.63 and 364.65

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Solution

The fourth proportional to 648.25, 894.63 and 364.65 is: 503.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.25 : 894.63 = 364.65 : x
  2. Step 2: Convert to fraction form
    648.25/894.63 = 364.65/x
  3. Step 3: Cross multiply
    648.25x = 894.63 × 364.65
  4. Step 4: Simplify right side
    648.25x = 326,224.84
  5. Step 5: Solve for x
    x = 326,224.84/648.25
  6. Step 6: Final answer
    x = 503.24

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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.