Home / 358,122.20-494,208.87-196,989.50

Finding the Fourth Proportional to 358,122.20, 494,208.87 and 196,989.50

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Solution

The fourth proportional to 358,122.20, 494,208.87 and 196,989.50 is: 271,845.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,122.20 : 494,208.87 = 196,989.50 : x
  2. Step 2: Convert to fraction form
    358,122.20/494,208.87 = 196,989.50/x
  3. Step 3: Cross multiply
    358,122.20x = 494,208.87 × 196,989.50
  4. Step 4: Simplify right side
    358,122.20x = 97,353,958,693.68
  5. Step 5: Solve for x
    x = 97,353,958,693.68/358,122.20
  6. Step 6: Final answer
    x = 271,845.64

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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.