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Finding the Fourth Proportional to 290,476.80, 435,628.80 and 112,881.60

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Solution

The fourth proportional to 290,476.80, 435,628.80 and 112,881.60 is: 169,288.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,476.80 : 435,628.80 = 112,881.60 : x
  2. Step 2: Convert to fraction form
    290,476.80/435,628.80 = 112,881.60/x
  3. Step 3: Cross multiply
    290,476.80x = 435,628.80 × 112,881.60
  4. Step 4: Simplify right side
    290,476.80x = 49,174,475,950.08
  5. Step 5: Solve for x
    x = 49,174,475,950.08/290,476.80
  6. Step 6: Final answer
    x = 169,288.82

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