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Finding the Fourth Proportional to 333,121.80, 499,536.90 and 133,375.80

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Solution

The fourth proportional to 333,121.80, 499,536.90 and 133,375.80 is: 200,005.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,121.80 : 499,536.90 = 133,375.80 : x
  2. Step 2: Convert to fraction form
    333,121.80/499,536.90 = 133,375.80/x
  3. Step 3: Cross multiply
    333,121.80x = 499,536.90 × 133,375.80
  4. Step 4: Simplify right side
    333,121.80x = 66,626,133,667.02
  5. Step 5: Solve for x
    x = 66,626,133,667.02/333,121.80
  6. Step 6: Final answer
    x = 200,005.32

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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.