Finding the Fourth Proportional to 208,310.97, 312,482.65 and 68,083.77
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Solution
The fourth proportional to 208,310.97, 312,482.65 and 68,083.77 is: 102,130.95
Step by Step Solution
- Step 1: Write the proportion equation
208,310.97 : 312,482.65 = 68,083.77 : x - Step 2: Convert to fraction form
208,310.97/312,482.65 = 68,083.77/x - Step 3: Cross multiply
208,310.97x = 312,482.65 × 68,083.77 - Step 4: Simplify right side
208,310.97x = 21,274,996,090.38 - Step 5: Solve for x
x = 21,274,996,090.38/208,310.97 - Step 6: Final answer
x = 102,130.95
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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.