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Finding the Fourth Proportional to 298,082.20, 447,134.10 and 87,741.40

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Solution

The fourth proportional to 298,082.20, 447,134.10 and 87,741.40 is: 131,615.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,082.20 : 447,134.10 = 87,741.40 : x
  2. Step 2: Convert to fraction form
    298,082.20/447,134.10 = 87,741.40/x
  3. Step 3: Cross multiply
    298,082.20x = 447,134.10 × 87,741.40
  4. Step 4: Simplify right side
    298,082.20x = 39,232,171,921.74
  5. Step 5: Solve for x
    x = 39,232,171,921.74/298,082.20
  6. Step 6: Final answer
    x = 131,615.28

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