Finding the Fourth Proportional to 208,040.05, 312,068.99 and 81,707.68
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Solution
The fourth proportional to 208,040.05, 312,068.99 and 81,707.68 is: 122,565.02
Step by Step Solution
- Step 1: Write the proportion equation
208,040.05 : 312,068.99 = 81,707.68 : x - Step 2: Convert to fraction form
208,040.05/312,068.99 = 81,707.68/x - Step 3: Cross multiply
208,040.05x = 312,068.99 × 81,707.68 - Step 4: Simplify right side
208,040.05x = 25,498,433,172.84 - Step 5: Solve for x
x = 25,498,433,172.84/208,040.05 - Step 6: Final answer
x = 122,565.02
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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.