Home / 256,289.10-384,473.61-123,144.54

Finding the Fourth Proportional to 256,289.10, 384,473.61 and 123,144.54

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Solution

The fourth proportional to 256,289.10, 384,473.61 and 123,144.54 is: 184,736.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,289.10 : 384,473.61 = 123,144.54 : x
  2. Step 2: Convert to fraction form
    256,289.10/384,473.61 = 123,144.54/x
  3. Step 3: Cross multiply
    256,289.10x = 384,473.61 × 123,144.54
  4. Step 4: Simplify right side
    256,289.10x = 47,345,825,845.59
  5. Step 5: Solve for x
    x = 47,345,825,845.59/256,289.10
  6. Step 6: Final answer
    x = 184,736.01

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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.