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Finding the Fourth Proportional to 379,102.88, 523,151.97 and 209,333.36

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Solution

The fourth proportional to 379,102.88, 523,151.97 and 209,333.36 is: 288,874.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,102.88 : 523,151.97 = 209,333.36 : x
  2. Step 2: Convert to fraction form
    379,102.88/523,151.97 = 209,333.36/x
  3. Step 3: Cross multiply
    379,102.88x = 523,151.97 × 209,333.36
  4. Step 4: Simplify right side
    379,102.88x = 109,513,160,193.60
  5. Step 5: Solve for x
    x = 109,513,160,193.60/379,102.88
  6. Step 6: Final answer
    x = 288,874.51

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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.