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Finding the Fourth Proportional to 298,286.45, 411,635.36 and 164,150.45

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Solution

The fourth proportional to 298,286.45, 411,635.36 and 164,150.45 is: 226,527.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,286.45 : 411,635.36 = 164,150.45 : x
  2. Step 2: Convert to fraction form
    298,286.45/411,635.36 = 164,150.45/x
  3. Step 3: Cross multiply
    298,286.45x = 411,635.36 × 164,150.45
  4. Step 4: Simplify right side
    298,286.45x = 67,570,126,700.98
  5. Step 5: Solve for x
    x = 67,570,126,700.98/298,286.45
  6. Step 6: Final answer
    x = 226,527.65

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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.