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Finding the Fourth Proportional to 230,249.28, 317,736.99 and 128,274.69

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Solution

The fourth proportional to 230,249.28, 317,736.99 and 128,274.69 is: 177,015.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,249.28 : 317,736.99 = 128,274.69 : x
  2. Step 2: Convert to fraction form
    230,249.28/317,736.99 = 128,274.69/x
  3. Step 3: Cross multiply
    230,249.28x = 317,736.99 × 128,274.69
  4. Step 4: Simplify right side
    230,249.28x = 40,757,613,893.78
  5. Step 5: Solve for x
    x = 40,757,613,893.78/230,249.28
  6. Step 6: Final answer
    x = 177,015.16

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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.