Home / 256,941.74-354,570.56-142,220.61

Finding the Fourth Proportional to 256,941.74, 354,570.56 and 142,220.61

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Solution

The fourth proportional to 256,941.74, 354,570.56 and 142,220.61 is: 196,259.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,941.74 : 354,570.56 = 142,220.61 : x
  2. Step 2: Convert to fraction form
    256,941.74/354,570.56 = 142,220.61/x
  3. Step 3: Cross multiply
    256,941.74x = 354,570.56 × 142,220.61
  4. Step 4: Simplify right side
    256,941.74x = 50,427,241,153.47
  5. Step 5: Solve for x
    x = 50,427,241,153.47/256,941.74
  6. Step 6: Final answer
    x = 196,259.43

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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.