Home / 256,300.04-353,682.78-143,120.36

Finding the Fourth Proportional to 256,300.04, 353,682.78 and 143,120.36

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Solution

The fourth proportional to 256,300.04, 353,682.78 and 143,120.36 is: 197,499.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,300.04 : 353,682.78 = 143,120.36 : x
  2. Step 2: Convert to fraction form
    256,300.04/353,682.78 = 143,120.36/x
  3. Step 3: Cross multiply
    256,300.04x = 353,682.78 × 143,120.36
  4. Step 4: Simplify right side
    256,300.04x = 50,619,206,799.40
  5. Step 5: Solve for x
    x = 50,619,206,799.40/256,300.04
  6. Step 6: Final answer
    x = 197,499.80

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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.