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Finding the Fourth Proportional to 308,150.88, 425,304 and 199,389.12

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Solution

The fourth proportional to 308,150.88, 425,304 and 199,389.12 is: 275,193.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,150.88 : 425,304 = 199,389.12 : x
  2. Step 2: Convert to fraction form
    308,150.88/425,304 = 199,389.12/x
  3. Step 3: Cross multiply
    308,150.88x = 425,304 × 199,389.12
  4. Step 4: Simplify right side
    308,150.88x = 84,800,990,292.48
  5. Step 5: Solve for x
    x = 84,800,990,292.48/308,150.88
  6. Step 6: Final answer
    x = 275,193.08

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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.