Home / 256,849.62-354,433.20-143,650.50

Finding the Fourth Proportional to 256,849.62, 354,433.20 and 143,650.50

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Solution

The fourth proportional to 256,849.62, 354,433.20 and 143,650.50 is: 198,226.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,849.62 : 354,433.20 = 143,650.50 : x
  2. Step 2: Convert to fraction form
    256,849.62/354,433.20 = 143,650.50/x
  3. Step 3: Cross multiply
    256,849.62x = 354,433.20 × 143,650.50
  4. Step 4: Simplify right side
    256,849.62x = 50,914,506,396.60
  5. Step 5: Solve for x
    x = 50,914,506,396.60/256,849.62
  6. Step 6: Final answer
    x = 198,226.91

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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.