Home / 256,981.64-354,629.03-140,694.86

Finding the Fourth Proportional to 256,981.64, 354,629.03 and 140,694.86

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Solution

The fourth proportional to 256,981.64, 354,629.03 and 140,694.86 is: 194,155.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,981.64 : 354,629.03 = 140,694.86 : x
  2. Step 2: Convert to fraction form
    256,981.64/354,629.03 = 140,694.86/x
  3. Step 3: Cross multiply
    256,981.64x = 354,629.03 × 140,694.86
  4. Step 4: Simplify right side
    256,981.64x = 49,894,479,251.17
  5. Step 5: Solve for x
    x = 49,894,479,251.17/256,981.64
  6. Step 6: Final answer
    x = 194,155.82

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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.