Finding the Fourth Proportional to 201,692.40, 302,538.60 and 68,722.80
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Solution
The fourth proportional to 201,692.40, 302,538.60 and 68,722.80 is: 103,084.20
Step by Step Solution
- Step 1: Write the proportion equation
201,692.40 : 302,538.60 = 68,722.80 : x - Step 2: Convert to fraction form
201,692.40/302,538.60 = 68,722.80/x - Step 3: Cross multiply
201,692.40x = 302,538.60 × 68,722.80 - Step 4: Simplify right side
201,692.40x = 20,791,299,700.08 - Step 5: Solve for x
x = 20,791,299,700.08/201,692.40 - Step 6: Final answer
x = 103,084.20
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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.