Finding the Fourth Proportional to 208,540.08, 312,810.12 and 75,389.19
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Solution
The fourth proportional to 208,540.08, 312,810.12 and 75,389.19 is: 113,083.79
Step by Step Solution
- Step 1: Write the proportion equation
208,540.08 : 312,810.12 = 75,389.19 : x - Step 2: Convert to fraction form
208,540.08/312,810.12 = 75,389.19/x - Step 3: Cross multiply
208,540.08x = 312,810.12 × 75,389.19 - Step 4: Simplify right side
208,540.08x = 23,582,501,570.60 - Step 5: Solve for x
x = 23,582,501,570.60/208,540.08 - Step 6: Final answer
x = 113,083.79
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1.5x scale
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.