Home / 256,521.32-353,998.86-143,344.08

Finding the Fourth Proportional to 256,521.32, 353,998.86 and 143,344.08

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Solution

The fourth proportional to 256,521.32, 353,998.86 and 143,344.08 is: 197,814.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,521.32 : 353,998.86 = 143,344.08 : x
  2. Step 2: Convert to fraction form
    256,521.32/353,998.86 = 143,344.08/x
  3. Step 3: Cross multiply
    256,521.32x = 353,998.86 × 143,344.08
  4. Step 4: Simplify right side
    256,521.32x = 50,743,640,907.75
  5. Step 5: Solve for x
    x = 50,743,640,907.75/256,521.32
  6. Step 6: Final answer
    x = 197,814.52

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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.