Home / 256,828.98-354,434.40-142,105.62

Finding the Fourth Proportional to 256,828.98, 354,434.40 and 142,105.62

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Solution

The fourth proportional to 256,828.98, 354,434.40 and 142,105.62 is: 196,111.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,828.98 : 354,434.40 = 142,105.62 : x
  2. Step 2: Convert to fraction form
    256,828.98/354,434.40 = 142,105.62/x
  3. Step 3: Cross multiply
    256,828.98x = 354,434.40 × 142,105.62
  4. Step 4: Simplify right side
    256,828.98x = 50,367,120,161.33
  5. Step 5: Solve for x
    x = 50,367,120,161.33/256,828.98
  6. Step 6: Final answer
    x = 196,111.51

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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.