Home / 257,181.12-354,906.21-142,459.38

Finding the Fourth Proportional to 257,181.12, 354,906.21 and 142,459.38

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Solution

The fourth proportional to 257,181.12, 354,906.21 and 142,459.38 is: 196,591.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,181.12 : 354,906.21 = 142,459.38 : x
  2. Step 2: Convert to fraction form
    257,181.12/354,906.21 = 142,459.38/x
  3. Step 3: Cross multiply
    257,181.12x = 354,906.21 × 142,459.38
  4. Step 4: Simplify right side
    257,181.12x = 50,559,718,634.75
  5. Step 5: Solve for x
    x = 50,559,718,634.75/257,181.12
  6. Step 6: Final answer
    x = 196,591.88

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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.