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Finding the Fourth Proportional to 290,427.40, 435,668 and 112,947.76

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Solution

The fourth proportional to 290,427.40, 435,668 and 112,947.76 is: 169,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,427.40 : 435,668 = 112,947.76 : x
  2. Step 2: Convert to fraction form
    290,427.40/435,668 = 112,947.76/x
  3. Step 3: Cross multiply
    290,427.40x = 435,668 × 112,947.76
  4. Step 4: Simplify right side
    290,427.40x = 49,207,724,703.68
  5. Step 5: Solve for x
    x = 49,207,724,703.68/290,427.40
  6. Step 6: Final answer
    x = 169,432.10

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