Home / 256,239.32-353,612.92-141,520.85

Finding the Fourth Proportional to 256,239.32, 353,612.92 and 141,520.85

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Solution

The fourth proportional to 256,239.32, 353,612.92 and 141,520.85 is: 195,300.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,239.32 : 353,612.92 = 141,520.85 : x
  2. Step 2: Convert to fraction form
    256,239.32/353,612.92 = 141,520.85/x
  3. Step 3: Cross multiply
    256,239.32x = 353,612.92 × 141,520.85
  4. Step 4: Simplify right side
    256,239.32x = 50,043,599,086.35
  5. Step 5: Solve for x
    x = 50,043,599,086.35/256,239.32
  6. Step 6: Final answer
    x = 195,300.23

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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.