Home / 256,513.32-353,987.82-143,336.07

Finding the Fourth Proportional to 256,513.32, 353,987.82 and 143,336.07

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Solution

The fourth proportional to 256,513.32, 353,987.82 and 143,336.07 is: 197,803.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,513.32 : 353,987.82 = 143,336.07 : x
  2. Step 2: Convert to fraction form
    256,513.32/353,987.82 = 143,336.07/x
  3. Step 3: Cross multiply
    256,513.32x = 353,987.82 × 143,336.07
  4. Step 4: Simplify right side
    256,513.32x = 50,739,222,946.67
  5. Step 5: Solve for x
    x = 50,739,222,946.67/256,513.32
  6. Step 6: Final answer
    x = 197,803.46

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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.