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Finding the Fourth Proportional to 187,019.76, 280,944.84 and 115,994.89

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Solution

The fourth proportional to 187,019.76, 280,944.84 and 115,994.89 is: 174,249.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,019.76 : 280,944.84 = 115,994.89 : x
  2. Step 2: Convert to fraction form
    187,019.76/280,944.84 = 115,994.89/x
  3. Step 3: Cross multiply
    187,019.76x = 280,944.84 × 115,994.89
  4. Step 4: Simplify right side
    187,019.76x = 32,588,165,811.87
  5. Step 5: Solve for x
    x = 32,588,165,811.87/187,019.76
  6. Step 6: Final answer
    x = 174,249.85

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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.