Home / 256,743.78-354,279.13-142,004.19

Finding the Fourth Proportional to 256,743.78, 354,279.13 and 142,004.19

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Solution

The fourth proportional to 256,743.78, 354,279.13 and 142,004.19 is: 195,950.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,743.78 : 354,279.13 = 142,004.19 : x
  2. Step 2: Convert to fraction form
    256,743.78/354,279.13 = 142,004.19/x
  3. Step 3: Cross multiply
    256,743.78x = 354,279.13 × 142,004.19
  4. Step 4: Simplify right side
    256,743.78x = 50,309,120,889.55
  5. Step 5: Solve for x
    x = 50,309,120,889.55/256,743.78
  6. Step 6: Final answer
    x = 195,950.69

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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.