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Finding the Fourth Proportional to 302,489.76, 453,734.64 and 80,868

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Solution

The fourth proportional to 302,489.76, 453,734.64 and 80,868 is: 121,302.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,489.76 : 453,734.64 = 80,868 : x
  2. Step 2: Convert to fraction form
    302,489.76/453,734.64 = 80,868/x
  3. Step 3: Cross multiply
    302,489.76x = 453,734.64 × 80,868
  4. Step 4: Simplify right side
    302,489.76x = 36,692,612,867.52
  5. Step 5: Solve for x
    x = 36,692,612,867.52/302,489.76
  6. Step 6: Final answer
    x = 121,302.00

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