Home / 256,982.58-354,640.15-140,694.10

Finding the Fourth Proportional to 256,982.58, 354,640.15 and 140,694.10

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Solution

The fourth proportional to 256,982.58, 354,640.15 and 140,694.10 is: 194,160.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,982.58 : 354,640.15 = 140,694.10 : x
  2. Step 2: Convert to fraction form
    256,982.58/354,640.15 = 140,694.10/x
  3. Step 3: Cross multiply
    256,982.58x = 354,640.15 × 140,694.10
  4. Step 4: Simplify right side
    256,982.58x = 49,895,776,728.12
  5. Step 5: Solve for x
    x = 49,895,776,728.12/256,982.58
  6. Step 6: Final answer
    x = 194,160.16

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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.