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Finding the Fourth Proportional to 345,946.60, 519,138.60 and 203,791.60

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Solution

The fourth proportional to 345,946.60, 519,138.60 and 203,791.60 is: 305,816.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,946.60 : 519,138.60 = 203,791.60 : x
  2. Step 2: Convert to fraction form
    345,946.60/519,138.60 = 203,791.60/x
  3. Step 3: Cross multiply
    345,946.60x = 519,138.60 × 203,791.60
  4. Step 4: Simplify right side
    345,946.60x = 105,796,085,915.76
  5. Step 5: Solve for x
    x = 105,796,085,915.76/345,946.60
  6. Step 6: Final answer
    x = 305,816.23

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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.