Finding the Fourth Proportional to 208,621.19, 312,987.96 and 107,364.08
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Solution
The fourth proportional to 208,621.19, 312,987.96 and 107,364.08 is: 161,075.03
Step by Step Solution
- Step 1: Write the proportion equation
208,621.19 : 312,987.96 = 107,364.08 : x - Step 2: Convert to fraction form
208,621.19/312,987.96 = 107,364.08/x - Step 3: Cross multiply
208,621.19x = 312,987.96 × 107,364.08 - Step 4: Simplify right side
208,621.19x = 33,603,665,158.95 - Step 5: Solve for x
x = 33,603,665,158.95/208,621.19 - Step 6: Final answer
x = 161,075.03
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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.