Finding the Fourth Proportional to 209,424.18, 314,137.14 and 65,331.78
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Solution
The fourth proportional to 209,424.18, 314,137.14 and 65,331.78 is: 97,997.94
Step by Step Solution
- Step 1: Write the proportion equation
209,424.18 : 314,137.14 = 65,331.78 : x - Step 2: Convert to fraction form
209,424.18/314,137.14 = 65,331.78/x - Step 3: Cross multiply
209,424.18x = 314,137.14 × 65,331.78 - Step 4: Simplify right side
209,424.18x = 20,523,138,520.31 - Step 5: Solve for x
x = 20,523,138,520.31/209,424.18 - Step 6: Final answer
x = 97,997.94
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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.