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Finding the Fourth Proportional to 265,903.19, 398,854.58 and 78,914.69

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Solution

The fourth proportional to 265,903.19, 398,854.58 and 78,914.69 is: 118,371.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,903.19 : 398,854.58 = 78,914.69 : x
  2. Step 2: Convert to fraction form
    265,903.19/398,854.58 = 78,914.69/x
  3. Step 3: Cross multiply
    265,903.19x = 398,854.58 × 78,914.69
  4. Step 4: Simplify right side
    265,903.19x = 31,475,483,146.93
  5. Step 5: Solve for x
    x = 31,475,483,146.93/265,903.19
  6. Step 6: Final answer
    x = 118,371.97

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