Finding the Fourth Proportional to 281,136.60, 421,899.30 and 202,307.40
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Solution
The fourth proportional to 281,136.60, 421,899.30 and 202,307.40 is: 303,600.99
Step by Step Solution
- Step 1: Write the proportion equation
281,136.60 : 421,899.30 = 202,307.40 : x - Step 2: Convert to fraction form
281,136.60/421,899.30 = 202,307.40/x - Step 3: Cross multiply
281,136.60x = 421,899.30 × 202,307.40 - Step 4: Simplify right side
281,136.60x = 85,353,350,444.82 - Step 5: Solve for x
x = 85,353,350,444.82/281,136.60 - Step 6: Final answer
x = 303,600.99
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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.