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Finding the Fourth Proportional to 290,441.44, 435,689.04 and 112,961.92

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Solution

The fourth proportional to 290,441.44, 435,689.04 and 112,961.92 is: 169,453.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,441.44 : 435,689.04 = 112,961.92 : x
  2. Step 2: Convert to fraction form
    290,441.44/435,689.04 = 112,961.92/x
  3. Step 3: Cross multiply
    290,441.44x = 435,689.04 × 112,961.92
  4. Step 4: Simplify right side
    290,441.44x = 49,216,270,481.36
  5. Step 5: Solve for x
    x = 49,216,270,481.36/290,441.44
  6. Step 6: Final answer
    x = 169,453.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.