Finding the Fourth Proportional to 208,965.60, 313,495.68 and 68,725.44
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Solution
The fourth proportional to 208,965.60, 313,495.68 and 68,725.44 is: 103,103.71
Step by Step Solution
- Step 1: Write the proportion equation
208,965.60 : 313,495.68 = 68,725.44 : x - Step 2: Convert to fraction form
208,965.60/313,495.68 = 68,725.44/x - Step 3: Cross multiply
208,965.60x = 313,495.68 × 68,725.44 - Step 4: Simplify right side
208,965.60x = 21,545,128,546.10 - Step 5: Solve for x
x = 21,545,128,546.10/208,965.60 - Step 6: Final answer
x = 103,103.71
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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.