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Finding the Fourth Proportional to 323,170.81, 445,644.95 and 214,237.25

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Solution

The fourth proportional to 323,170.81, 445,644.95 and 214,237.25 is: 295,428.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,170.81 : 445,644.95 = 214,237.25 : x
  2. Step 2: Convert to fraction form
    323,170.81/445,644.95 = 214,237.25/x
  3. Step 3: Cross multiply
    323,170.81x = 445,644.95 × 214,237.25
  4. Step 4: Simplify right side
    323,170.81x = 95,473,746,936.15
  5. Step 5: Solve for x
    x = 95,473,746,936.15/323,170.81
  6. Step 6: Final answer
    x = 295,428.13

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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.