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Finding the Fourth Proportional to 203,483.30, 305,334.30 and 85,166.60

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Solution

The fourth proportional to 203,483.30, 305,334.30 and 85,166.60 is: 127,795.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,483.30 : 305,334.30 = 85,166.60 : x
  2. Step 2: Convert to fraction form
    203,483.30/305,334.30 = 85,166.60/x
  3. Step 3: Cross multiply
    203,483.30x = 305,334.30 × 85,166.60
  4. Step 4: Simplify right side
    203,483.30x = 26,004,284,194.38
  5. Step 5: Solve for x
    x = 26,004,284,194.38/203,483.30
  6. Step 6: Final answer
    x = 127,795.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.