Home / 330,022.82-455,353.43-186,782.86

Finding the Fourth Proportional to 330,022.82, 455,353.43 and 186,782.86

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Solution

The fourth proportional to 330,022.82, 455,353.43 and 186,782.86 is: 257,716.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,022.82 : 455,353.43 = 186,782.86 : x
  2. Step 2: Convert to fraction form
    330,022.82/455,353.43 = 186,782.86/x
  3. Step 3: Cross multiply
    330,022.82x = 455,353.43 × 186,782.86
  4. Step 4: Simplify right side
    330,022.82x = 85,052,213,893.91
  5. Step 5: Solve for x
    x = 85,052,213,893.91/330,022.82
  6. Step 6: Final answer
    x = 257,716.16

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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.