Finding the Fourth Proportional to 147,211.80, 220,817.70 and 36,403.80
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Solution
The fourth proportional to 147,211.80, 220,817.70 and 36,403.80 is: 54,605.70
Step by Step Solution
- Step 1: Write the proportion equation
147,211.80 : 220,817.70 = 36,403.80 : x - Step 2: Convert to fraction form
147,211.80/220,817.70 = 36,403.80/x - Step 3: Cross multiply
147,211.80x = 220,817.70 × 36,403.80 - Step 4: Simplify right side
147,211.80x = 8,038,603,387.26 - Step 5: Solve for x
x = 8,038,603,387.26/147,211.80 - Step 6: Final answer
x = 54,605.70
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1.5x scale
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.