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Finding the Fourth Proportional to 308,374.20, 425,628.30 and 200,757.72

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Solution

The fourth proportional to 308,374.20, 425,628.30 and 200,757.72 is: 277,092.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,374.20 : 425,628.30 = 200,757.72 : x
  2. Step 2: Convert to fraction form
    308,374.20/425,628.30 = 200,757.72/x
  3. Step 3: Cross multiply
    308,374.20x = 425,628.30 × 200,757.72
  4. Step 4: Simplify right side
    308,374.20x = 85,448,167,075.48
  5. Step 5: Solve for x
    x = 85,448,167,075.48/308,374.20
  6. Step 6: Final answer
    x = 277,092.46

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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.