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Finding the Fourth Proportional to 345,550.72, 476,861.28 and 200,384.80

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Solution

The fourth proportional to 345,550.72, 476,861.28 and 200,384.80 is: 276,531.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,550.72 : 476,861.28 = 200,384.80 : x
  2. Step 2: Convert to fraction form
    345,550.72/476,861.28 = 200,384.80/x
  3. Step 3: Cross multiply
    345,550.72x = 476,861.28 × 200,384.80
  4. Step 4: Simplify right side
    345,550.72x = 95,555,752,220.54
  5. Step 5: Solve for x
    x = 95,555,752,220.54/345,550.72
  6. Step 6: Final answer
    x = 276,531.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.