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Finding the Fourth Proportional to 187,998, 281,997 and 56,670

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Solution

The fourth proportional to 187,998, 281,997 and 56,670 is: 85,005

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,998 : 281,997 = 56,670 : x
  2. Step 2: Convert to fraction form
    187,998/281,997 = 56,670/x
  3. Step 3: Cross multiply
    187,998x = 281,997 × 56,670
  4. Step 4: Simplify right side
    187,998x = 15,980,769,990
  5. Step 5: Solve for x
    x = 15,980,769,990/187,998
  6. Step 6: Final answer
    x = 85,005

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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.