Home / 256,829.37-354,405.29-143,630.25

Finding the Fourth Proportional to 256,829.37, 354,405.29 and 143,630.25

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Solution

The fourth proportional to 256,829.37, 354,405.29 and 143,630.25 is: 198,198.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,829.37 : 354,405.29 = 143,630.25 : x
  2. Step 2: Convert to fraction form
    256,829.37/354,405.29 = 143,630.25/x
  3. Step 3: Cross multiply
    256,829.37x = 354,405.29 × 143,630.25
  4. Step 4: Simplify right side
    256,829.37x = 50,903,319,685.87
  5. Step 5: Solve for x
    x = 50,903,319,685.87/256,829.37
  6. Step 6: Final answer
    x = 198,198.98

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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.