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Finding the Fourth Proportional to 303,810.90, 419,269.41 and 190,696.02

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Solution

The fourth proportional to 303,810.90, 419,269.41 and 190,696.02 is: 263,167.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,810.90 : 419,269.41 = 190,696.02 : x
  2. Step 2: Convert to fraction form
    303,810.90/419,269.41 = 190,696.02/x
  3. Step 3: Cross multiply
    303,810.90x = 419,269.41 × 190,696.02
  4. Step 4: Simplify right side
    303,810.90x = 79,953,007,794.75
  5. Step 5: Solve for x
    x = 79,953,007,794.75/303,810.90
  6. Step 6: Final answer
    x = 263,167.02

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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.