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Finding the Fourth Proportional to 200,604.60, 277,021.62 and 129,109.14

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Solution

The fourth proportional to 200,604.60, 277,021.62 and 129,109.14 is: 178,291.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,604.60 : 277,021.62 = 129,109.14 : x
  2. Step 2: Convert to fraction form
    200,604.60/277,021.62 = 129,109.14/x
  3. Step 3: Cross multiply
    200,604.60x = 277,021.62 × 129,109.14
  4. Step 4: Simplify right side
    200,604.60x = 35,766,023,119.61
  5. Step 5: Solve for x
    x = 35,766,023,119.61/200,604.60
  6. Step 6: Final answer
    x = 178,291.14

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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.