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Finding the Fourth Proportional to 170,890.20, 256,335.30 and 46,231.20

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Solution

The fourth proportional to 170,890.20, 256,335.30 and 46,231.20 is: 69,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,890.20 : 256,335.30 = 46,231.20 : x
  2. Step 2: Convert to fraction form
    170,890.20/256,335.30 = 46,231.20/x
  3. Step 3: Cross multiply
    170,890.20x = 256,335.30 × 46,231.20
  4. Step 4: Simplify right side
    170,890.20x = 11,850,688,521.36
  5. Step 5: Solve for x
    x = 11,850,688,521.36/170,890.20
  6. Step 6: Final answer
    x = 69,346.80

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