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Finding the Fourth Proportional to 333,458.91, 500,189.65 and 80,738.98

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Solution

The fourth proportional to 333,458.91, 500,189.65 and 80,738.98 is: 121,108.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,458.91 : 500,189.65 = 80,738.98 : x
  2. Step 2: Convert to fraction form
    333,458.91/500,189.65 = 80,738.98/x
  3. Step 3: Cross multiply
    333,458.91x = 500,189.65 × 80,738.98
  4. Step 4: Simplify right side
    333,458.91x = 40,384,802,147.56
  5. Step 5: Solve for x
    x = 40,384,802,147.56/333,458.91
  6. Step 6: Final answer
    x = 121,108.78

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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.