Home / 256,755.15-354,322.41-140,470.08

Finding the Fourth Proportional to 256,755.15, 354,322.41 and 140,470.08

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Solution

The fourth proportional to 256,755.15, 354,322.41 and 140,470.08 is: 193,848.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,755.15 : 354,322.41 = 140,470.08 : x
  2. Step 2: Convert to fraction form
    256,755.15/354,322.41 = 140,470.08/x
  3. Step 3: Cross multiply
    256,755.15x = 354,322.41 × 140,470.08
  4. Step 4: Simplify right side
    256,755.15x = 49,771,697,278.49
  5. Step 5: Solve for x
    x = 49,771,697,278.49/256,755.15
  6. Step 6: Final answer
    x = 193,848.88

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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.