Home / 256,664.50-354,199.23-143,487.25

Finding the Fourth Proportional to 256,664.50, 354,199.23 and 143,487.25

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Solution

The fourth proportional to 256,664.50, 354,199.23 and 143,487.25 is: 198,013.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,664.50 : 354,199.23 = 143,487.25 : x
  2. Step 2: Convert to fraction form
    256,664.50/354,199.23 = 143,487.25/x
  3. Step 3: Cross multiply
    256,664.50x = 354,199.23 × 143,487.25
  4. Step 4: Simplify right side
    256,664.50x = 50,823,072,579.32
  5. Step 5: Solve for x
    x = 50,823,072,579.32/256,664.50
  6. Step 6: Final answer
    x = 198,013.64

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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.