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Finding the Fourth Proportional to 290,770.16, 435,976.56 and 113,069.97

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Solution

The fourth proportional to 290,770.16, 435,976.56 and 113,069.97 is: 169,535.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,770.16 : 435,976.56 = 113,069.97 : x
  2. Step 2: Convert to fraction form
    290,770.16/435,976.56 = 113,069.97/x
  3. Step 3: Cross multiply
    290,770.16x = 435,976.56 × 113,069.97
  4. Step 4: Simplify right side
    290,770.16x = 49,295,856,559.90
  5. Step 5: Solve for x
    x = 49,295,856,559.90/290,770.16
  6. Step 6: Final answer
    x = 169,535.48

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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.