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Finding the Fourth Proportional to 187,342.84, 280,882.82 and 68,999.01

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Solution

The fourth proportional to 187,342.84, 280,882.82 and 68,999.01 is: 103,450.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,342.84 : 280,882.82 = 68,999.01 : x
  2. Step 2: Convert to fraction form
    187,342.84/280,882.82 = 68,999.01/x
  3. Step 3: Cross multiply
    187,342.84x = 280,882.82 × 68,999.01
  4. Step 4: Simplify right side
    187,342.84x = 19,380,635,625.20
  5. Step 5: Solve for x
    x = 19,380,635,625.20/187,342.84
  6. Step 6: Final answer
    x = 103,450.10

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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.