Home / 290,039.26-400,327.74-198,195.72

Finding the Fourth Proportional to 290,039.26, 400,327.74 and 198,195.72

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Solution

The fourth proportional to 290,039.26, 400,327.74 and 198,195.72 is: 273,560.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,039.26 : 400,327.74 = 198,195.72 : x
  2. Step 2: Convert to fraction form
    290,039.26/400,327.74 = 198,195.72/x
  3. Step 3: Cross multiply
    290,039.26x = 400,327.74 × 198,195.72
  4. Step 4: Simplify right side
    290,039.26x = 79,343,242,663.63
  5. Step 5: Solve for x
    x = 79,343,242,663.63/290,039.26
  6. Step 6: Final answer
    x = 273,560.36

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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.