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Finding the Fourth Proportional to 204,812.40, 307,218.60 and 188,223.60

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Solution

The fourth proportional to 204,812.40, 307,218.60 and 188,223.60 is: 282,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,812.40 : 307,218.60 = 188,223.60 : x
  2. Step 2: Convert to fraction form
    204,812.40/307,218.60 = 188,223.60/x
  3. Step 3: Cross multiply
    204,812.40x = 307,218.60 × 188,223.60
  4. Step 4: Simplify right side
    204,812.40x = 57,825,790,878.96
  5. Step 5: Solve for x
    x = 57,825,790,878.96/204,812.40
  6. Step 6: Final answer
    x = 282,335.40

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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.