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Finding the Fourth Proportional to 280,932.16, 421,310.40 and 93,899.92

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Solution

The fourth proportional to 280,932.16, 421,310.40 and 93,899.92 is: 140,820.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,932.16 : 421,310.40 = 93,899.92 : x
  2. Step 2: Convert to fraction form
    280,932.16/421,310.40 = 93,899.92/x
  3. Step 3: Cross multiply
    280,932.16x = 421,310.40 × 93,899.92
  4. Step 4: Simplify right side
    280,932.16x = 39,561,012,855.17
  5. Step 5: Solve for x
    x = 39,561,012,855.17/280,932.16
  6. Step 6: Final answer
    x = 140,820.52

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