Finding the Fourth Proportional to 207,692.51, 311,331.74 and 87,779.70
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Solution
The fourth proportional to 207,692.51, 311,331.74 and 87,779.70 is: 131,582.05
Step by Step Solution
- Step 1: Write the proportion equation
207,692.51 : 311,331.74 = 87,779.70 : x - Step 2: Convert to fraction form
207,692.51/311,331.74 = 87,779.70/x - Step 3: Cross multiply
207,692.51x = 311,331.74 × 87,779.70 - Step 4: Simplify right side
207,692.51x = 27,328,606,298.78 - Step 5: Solve for x
x = 27,328,606,298.78/207,692.51 - Step 6: Final answer
x = 131,582.05
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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.