Home / 256,500.07-353,969.34-143,322.91

Finding the Fourth Proportional to 256,500.07, 353,969.34 and 143,322.91

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Solution

The fourth proportional to 256,500.07, 353,969.34 and 143,322.91 is: 197,785.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,500.07 : 353,969.34 = 143,322.91 : x
  2. Step 2: Convert to fraction form
    256,500.07/353,969.34 = 143,322.91/x
  3. Step 3: Cross multiply
    256,500.07x = 353,969.34 × 143,322.91
  4. Step 4: Simplify right side
    256,500.07x = 50,731,915,859.58
  5. Step 5: Solve for x
    x = 50,731,915,859.58/256,500.07
  6. Step 6: Final answer
    x = 197,785.19

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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.