Home / 256,536.28-384,887.46-123,399.22

Finding the Fourth Proportional to 256,536.28, 384,887.46 and 123,399.22

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Solution

The fourth proportional to 256,536.28, 384,887.46 and 123,399.22 is: 185,138.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,536.28 : 384,887.46 = 123,399.22 : x
  2. Step 2: Convert to fraction form
    256,536.28/384,887.46 = 123,399.22/x
  3. Step 3: Cross multiply
    256,536.28x = 384,887.46 × 123,399.22
  4. Step 4: Simplify right side
    256,536.28x = 47,494,812,351.78
  5. Step 5: Solve for x
    x = 47,494,812,351.78/256,536.28
  6. Step 6: Final answer
    x = 185,138.77

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1.5x scale

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.