Home / 204,009.45-306,013.74-54,249.78

Finding the Fourth Proportional to 204,009.45, 306,013.74 and 54,249.78

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Solution

The fourth proportional to 204,009.45, 306,013.74 and 54,249.78 is: 81,374.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,009.45 : 306,013.74 = 54,249.78 : x
  2. Step 2: Convert to fraction form
    204,009.45/306,013.74 = 54,249.78/x
  3. Step 3: Cross multiply
    204,009.45x = 306,013.74 × 54,249.78
  4. Step 4: Simplify right side
    204,009.45x = 16,601,178,071.98
  5. Step 5: Solve for x
    x = 16,601,178,071.98/204,009.45
  6. Step 6: Final answer
    x = 81,374.55

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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.