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Finding the Fourth Proportional to 275,754.60, 413,644.05 and 155,809.80

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Solution

The fourth proportional to 275,754.60, 413,644.05 and 155,809.80 is: 233,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,754.60 : 413,644.05 = 155,809.80 : x
  2. Step 2: Convert to fraction form
    275,754.60/413,644.05 = 155,809.80/x
  3. Step 3: Cross multiply
    275,754.60x = 413,644.05 × 155,809.80
  4. Step 4: Simplify right side
    275,754.60x = 64,449,796,701.69
  5. Step 5: Solve for x
    x = 64,449,796,701.69/275,754.60
  6. Step 6: Final answer
    x = 233,721.57

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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.