Home / 256,536.36-354,017.61-143,359.11

Finding the Fourth Proportional to 256,536.36, 354,017.61 and 143,359.11

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Solution

The fourth proportional to 256,536.36, 354,017.61 and 143,359.11 is: 197,834.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,536.36 : 354,017.61 = 143,359.11 : x
  2. Step 2: Convert to fraction form
    256,536.36/354,017.61 = 143,359.11/x
  3. Step 3: Cross multiply
    256,536.36x = 354,017.61 × 143,359.11
  4. Step 4: Simplify right side
    256,536.36x = 50,751,649,493.93
  5. Step 5: Solve for x
    x = 50,751,649,493.93/256,536.36
  6. Step 6: Final answer
    x = 197,834.14

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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.