Finding the Fourth Proportional to 367,211.40, 550,817.10 and 209,455.80
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Solution
The fourth proportional to 367,211.40, 550,817.10 and 209,455.80 is: 314,183.70
Step by Step Solution
- Step 1: Write the proportion equation
367,211.40 : 550,817.10 = 209,455.80 : x - Step 2: Convert to fraction form
367,211.40/550,817.10 = 209,455.80/x - Step 3: Cross multiply
367,211.40x = 550,817.10 × 209,455.80 - Step 4: Simplify right side
367,211.40x = 115,371,836,334.18 - Step 5: Solve for x
x = 115,371,836,334.18/367,211.40 - Step 6: Final answer
x = 314,183.70
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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.