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Finding the Fourth Proportional to 303,200.70, 454,801.05 and 214,627.20

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Solution

The fourth proportional to 303,200.70, 454,801.05 and 214,627.20 is: 321,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,200.70 : 454,801.05 = 214,627.20 : x
  2. Step 2: Convert to fraction form
    303,200.70/454,801.05 = 214,627.20/x
  3. Step 3: Cross multiply
    303,200.70x = 454,801.05 × 214,627.20
  4. Step 4: Simplify right side
    303,200.70x = 97,612,675,918.56
  5. Step 5: Solve for x
    x = 97,612,675,918.56/303,200.70
  6. Step 6: Final answer
    x = 321,940.80

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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.