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Finding the Fourth Proportional to 187,089.30, 280,744.62 and 68,843.64

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Solution

The fourth proportional to 187,089.30, 280,744.62 and 68,843.64 is: 103,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,089.30 : 280,744.62 = 68,843.64 : x
  2. Step 2: Convert to fraction form
    187,089.30/280,744.62 = 68,843.64/x
  3. Step 3: Cross multiply
    187,089.30x = 280,744.62 × 68,843.64
  4. Step 4: Simplify right side
    187,089.30x = 19,327,481,551.22
  5. Step 5: Solve for x
    x = 19,327,481,551.22/187,089.30
  6. Step 6: Final answer
    x = 103,306.18

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1.5x scale

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.