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Finding the Fourth Proportional to 329,523.52, 494,287.89 and 215,767.21

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Solution

The fourth proportional to 329,523.52, 494,287.89 and 215,767.21 is: 323,652.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,523.52 : 494,287.89 = 215,767.21 : x
  2. Step 2: Convert to fraction form
    329,523.52/494,287.89 = 215,767.21/x
  3. Step 3: Cross multiply
    329,523.52x = 494,287.89 × 215,767.21
  4. Step 4: Simplify right side
    329,523.52x = 106,651,118,962.09
  5. Step 5: Solve for x
    x = 106,651,118,962.09/329,523.52
  6. Step 6: Final answer
    x = 323,652.52

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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.