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Finding the Fourth Proportional to 306,585.45, 460,042.20 and 129,110.40

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Solution

The fourth proportional to 306,585.45, 460,042.20 and 129,110.40 is: 193,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,585.45 : 460,042.20 = 129,110.40 : x
  2. Step 2: Convert to fraction form
    306,585.45/460,042.20 = 129,110.40/x
  3. Step 3: Cross multiply
    306,585.45x = 460,042.20 × 129,110.40
  4. Step 4: Simplify right side
    306,585.45x = 59,396,232,458.88
  5. Step 5: Solve for x
    x = 59,396,232,458.88/306,585.45
  6. Step 6: Final answer
    x = 193,734.67

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