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Finding the Fourth Proportional to 306,194.61, 422,524.60 and 170,220.29

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Solution

The fourth proportional to 306,194.61, 422,524.60 and 170,220.29 is: 234,890.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,194.61 : 422,524.60 = 170,220.29 : x
  2. Step 2: Convert to fraction form
    306,194.61/422,524.60 = 170,220.29/x
  3. Step 3: Cross multiply
    306,194.61x = 422,524.60 × 170,220.29
  4. Step 4: Simplify right side
    306,194.61x = 71,922,258,363.45
  5. Step 5: Solve for x
    x = 71,922,258,363.45/306,194.61
  6. Step 6: Final answer
    x = 234,890.67

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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.