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Finding the Fourth Proportional to 333,458.80, 500,189.45 and 80,738.88

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Solution

The fourth proportional to 333,458.80, 500,189.45 and 80,738.88 is: 121,108.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,458.80 : 500,189.45 = 80,738.88 : x
  2. Step 2: Convert to fraction form
    333,458.80/500,189.45 = 80,738.88/x
  3. Step 3: Cross multiply
    333,458.80x = 500,189.45 × 80,738.88
  4. Step 4: Simplify right side
    333,458.80x = 40,384,735,980.82
  5. Step 5: Solve for x
    x = 40,384,735,980.82/333,458.80
  6. Step 6: Final answer
    x = 121,108.62

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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.