Home / 256,256.71-353,656.13-143,101.33

Finding the Fourth Proportional to 256,256.71, 353,656.13 and 143,101.33

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Solution

The fourth proportional to 256,256.71, 353,656.13 and 143,101.33 is: 197,492.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,256.71 : 353,656.13 = 143,101.33 : x
  2. Step 2: Convert to fraction form
    256,256.71/353,656.13 = 143,101.33/x
  3. Step 3: Cross multiply
    256,256.71x = 353,656.13 × 143,101.33
  4. Step 4: Simplify right side
    256,256.71x = 50,608,661,850.15
  5. Step 5: Solve for x
    x = 50,608,661,850.15/256,256.71
  6. Step 6: Final answer
    x = 197,492.05

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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.