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Finding the Fourth Proportional to 322,282.88, 481,316.72 and 274,387.36

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Solution

The fourth proportional to 322,282.88, 481,316.72 and 274,387.36 is: 409,786.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,282.88 : 481,316.72 = 274,387.36 : x
  2. Step 2: Convert to fraction form
    322,282.88/481,316.72 = 274,387.36/x
  3. Step 3: Cross multiply
    322,282.88x = 481,316.72 × 274,387.36
  4. Step 4: Simplify right side
    322,282.88x = 132,067,224,124.66
  5. Step 5: Solve for x
    x = 132,067,224,124.66/322,282.88
  6. Step 6: Final answer
    x = 409,786.66

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.