Finding the Fourth Proportional to 290,745.15, 401,169.50 and 169,863.09
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Solution
The fourth proportional to 290,745.15, 401,169.50 and 169,863.09 is: 234,376.70
Step by Step Solution
- Step 1: Write the proportion equation
290,745.15 : 401,169.50 = 169,863.09 : x - Step 2: Convert to fraction form
290,745.15/401,169.50 = 169,863.09/x - Step 3: Cross multiply
290,745.15x = 401,169.50 × 169,863.09 - Step 4: Simplify right side
290,745.15x = 68,143,888,689.30 - Step 5: Solve for x
x = 68,143,888,689.30/290,745.15 - Step 6: Final answer
x = 234,376.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.