Home / 256,542.40-354,027.68-143,365.12

Finding the Fourth Proportional to 256,542.40, 354,027.68 and 143,365.12

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Solution

The fourth proportional to 256,542.40, 354,027.68 and 143,365.12 is: 197,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,542.40 : 354,027.68 = 143,365.12 : x
  2. Step 2: Convert to fraction form
    256,542.40/354,027.68 = 143,365.12/x
  3. Step 3: Cross multiply
    256,542.40x = 354,027.68 × 143,365.12
  4. Step 4: Simplify right side
    256,542.40x = 50,755,220,826.52
  5. Step 5: Solve for x
    x = 50,755,220,826.52/256,542.40
  6. Step 6: Final answer
    x = 197,843.40

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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.