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Finding the Fourth Proportional to 203,759.43, 305,624.71 and 53,996.40

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Solution

The fourth proportional to 203,759.43, 305,624.71 and 53,996.40 is: 80,990.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,759.43 : 305,624.71 = 53,996.40 : x
  2. Step 2: Convert to fraction form
    203,759.43/305,624.71 = 53,996.40/x
  3. Step 3: Cross multiply
    203,759.43x = 305,624.71 × 53,996.40
  4. Step 4: Simplify right side
    203,759.43x = 16,502,634,091.04
  5. Step 5: Solve for x
    x = 16,502,634,091.04/203,759.43
  6. Step 6: Final answer
    x = 80,990.77

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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.