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Finding the Fourth Proportional to 345,992.09, 477,480.90 and 200,786.68

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Solution

The fourth proportional to 345,992.09, 477,480.90 and 200,786.68 is: 277,092.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,992.09 : 477,480.90 = 200,786.68 : x
  2. Step 2: Convert to fraction form
    345,992.09/477,480.90 = 200,786.68/x
  3. Step 3: Cross multiply
    345,992.09x = 477,480.90 × 200,786.68
  4. Step 4: Simplify right side
    345,992.09x = 95,871,802,287.01
  5. Step 5: Solve for x
    x = 95,871,802,287.01/345,992.09
  6. Step 6: Final answer
    x = 277,092.47

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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.