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Finding the Fourth Proportional to 256,293.92, 353,668.56 and 143,094.56

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Solution

The fourth proportional to 256,293.92, 353,668.56 and 143,094.56 is: 197,460.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,293.92 : 353,668.56 = 143,094.56 : x
  2. Step 2: Convert to fraction form
    256,293.92/353,668.56 = 143,094.56/x
  3. Step 3: Cross multiply
    256,293.92x = 353,668.56 × 143,094.56
  4. Step 4: Simplify right side
    256,293.92x = 50,608,046,979.03
  5. Step 5: Solve for x
    x = 50,608,046,979.03/256,293.92
  6. Step 6: Final answer
    x = 197,460.97

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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.