Finding the Fourth Proportional to 236,690.67, 355,039.14 and 78,919.17
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Solution
The fourth proportional to 236,690.67, 355,039.14 and 78,919.17 is: 118,379.80
Step by Step Solution
- Step 1: Write the proportion equation
236,690.67 : 355,039.14 = 78,919.17 : x - Step 2: Convert to fraction form
236,690.67/355,039.14 = 78,919.17/x - Step 3: Cross multiply
236,690.67x = 355,039.14 × 78,919.17 - Step 4: Simplify right side
236,690.67x = 28,019,394,246.31 - Step 5: Solve for x
x = 28,019,394,246.31/236,690.67 - Step 6: Final answer
x = 118,379.80
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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.