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Finding the Fourth Proportional to 298,153.56, 411,439.85 and 162,187.67

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Solution

The fourth proportional to 298,153.56, 411,439.85 and 162,187.67 is: 223,812.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,153.56 : 411,439.85 = 162,187.67 : x
  2. Step 2: Convert to fraction form
    298,153.56/411,439.85 = 162,187.67/x
  3. Step 3: Cross multiply
    298,153.56x = 411,439.85 × 162,187.67
  4. Step 4: Simplify right side
    298,153.56x = 66,730,469,993.52
  5. Step 5: Solve for x
    x = 66,730,469,993.52/298,153.56
  6. Step 6: Final answer
    x = 223,812.42

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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.