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Finding the Fourth Proportional to 322,468.04, 445,129.92 and 214,998.80

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Solution

The fourth proportional to 322,468.04, 445,129.92 and 214,998.80 is: 296,781.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,468.04 : 445,129.92 = 214,998.80 : x
  2. Step 2: Convert to fraction form
    322,468.04/445,129.92 = 214,998.80/x
  3. Step 3: Cross multiply
    322,468.04x = 445,129.92 × 214,998.80
  4. Step 4: Simplify right side
    322,468.04x = 95,702,398,644.10
  5. Step 5: Solve for x
    x = 95,702,398,644.10/322,468.04
  6. Step 6: Final answer
    x = 296,781.03

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1.5x scale

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.