Home / 256,627.28-354,153.48-143,454.80

Finding the Fourth Proportional to 256,627.28, 354,153.48 and 143,454.80

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Solution

The fourth proportional to 256,627.28, 354,153.48 and 143,454.80 is: 197,972.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,627.28 : 354,153.48 = 143,454.80 : x
  2. Step 2: Convert to fraction form
    256,627.28/354,153.48 = 143,454.80/x
  3. Step 3: Cross multiply
    256,627.28x = 354,153.48 × 143,454.80
  4. Step 4: Simplify right side
    256,627.28x = 50,805,016,642.70
  5. Step 5: Solve for x
    x = 50,805,016,642.70/256,627.28
  6. Step 6: Final answer
    x = 197,972.00

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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.