Finding the Fourth Proportional to 206,692.49, 310,038.74 and 66,451.12
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Solution
The fourth proportional to 206,692.49, 310,038.74 and 66,451.12 is: 99,676.68
Step by Step Solution
- Step 1: Write the proportion equation
206,692.49 : 310,038.74 = 66,451.12 : x - Step 2: Convert to fraction form
206,692.49/310,038.74 = 66,451.12/x - Step 3: Cross multiply
206,692.49x = 310,038.74 × 66,451.12 - Step 4: Simplify right side
206,692.49x = 20,602,420,658.23 - Step 5: Solve for x
x = 20,602,420,658.23/206,692.49 - Step 6: Final answer
x = 99,676.68
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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.