Home / 256,120.22-384,097.26-85,296.44

Finding the Fourth Proportional to 256,120.22, 384,097.26 and 85,296.44

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Solution

The fourth proportional to 256,120.22, 384,097.26 and 85,296.44 is: 127,916.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,120.22 : 384,097.26 = 85,296.44 : x
  2. Step 2: Convert to fraction form
    256,120.22/384,097.26 = 85,296.44/x
  3. Step 3: Cross multiply
    256,120.22x = 384,097.26 × 85,296.44
  4. Step 4: Simplify right side
    256,120.22x = 32,762,128,891.75
  5. Step 5: Solve for x
    x = 32,762,128,891.75/256,120.22
  6. Step 6: Final answer
    x = 127,916.99

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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.