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Finding the Fourth Proportional to 379,581.39, 569,178.63 and 126,770.94

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Solution

The fourth proportional to 379,581.39, 569,178.63 and 126,770.94 is: 190,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,581.39 : 569,178.63 = 126,770.94 : x
  2. Step 2: Convert to fraction form
    379,581.39/569,178.63 = 126,770.94/x
  3. Step 3: Cross multiply
    379,581.39x = 569,178.63 × 126,770.94
  4. Step 4: Simplify right side
    379,581.39x = 72,155,309,953.01
  5. Step 5: Solve for x
    x = 72,155,309,953.01/379,581.39
  6. Step 6: Final answer
    x = 190,091.80

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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.