Finding the Fourth Proportional to 208,144.84, 311,918.36 and 102,840.80
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Solution
The fourth proportional to 208,144.84, 311,918.36 and 102,840.80 is: 154,113.52
Step by Step Solution
- Step 1: Write the proportion equation
208,144.84 : 311,918.36 = 102,840.80 : x - Step 2: Convert to fraction form
208,144.84/311,918.36 = 102,840.80/x - Step 3: Cross multiply
208,144.84x = 311,918.36 × 102,840.80 - Step 4: Simplify right side
208,144.84x = 32,077,933,677.09 - Step 5: Solve for x
x = 32,077,933,677.09/208,144.84 - Step 6: Final answer
x = 154,113.52
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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.