Home / 280,008.60-386,441.46-171,176.64

Finding the Fourth Proportional to 280,008.60, 386,441.46 and 171,176.64

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Solution

The fourth proportional to 280,008.60, 386,441.46 and 171,176.64 is: 236,241.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,008.60 : 386,441.46 = 171,176.64 : x
  2. Step 2: Convert to fraction form
    280,008.60/386,441.46 = 171,176.64/x
  3. Step 3: Cross multiply
    280,008.60x = 386,441.46 × 171,176.64
  4. Step 4: Simplify right side
    280,008.60x = 66,149,750,922.64
  5. Step 5: Solve for x
    x = 66,149,750,922.64/280,008.60
  6. Step 6: Final answer
    x = 236,241.86

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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.