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Finding the Fourth Proportional to 382,081.96, 573,087.79 and 129,333.56

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Solution

The fourth proportional to 382,081.96, 573,087.79 and 129,333.56 is: 193,988.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,081.96 : 573,087.79 = 129,333.56 : x
  2. Step 2: Convert to fraction form
    382,081.96/573,087.79 = 129,333.56/x
  3. Step 3: Cross multiply
    382,081.96x = 573,087.79 × 129,333.56
  4. Step 4: Simplify right side
    382,081.96x = 74,119,480,641.96
  5. Step 5: Solve for x
    x = 74,119,480,641.96/382,081.96
  6. Step 6: Final answer
    x = 193,988.44

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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.