Finding the Fourth Proportional to 201,611.20, 302,416.80 and 103,307.20
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Solution
The fourth proportional to 201,611.20, 302,416.80 and 103,307.20 is: 154,960.80
Step by Step Solution
- Step 1: Write the proportion equation
201,611.20 : 302,416.80 = 103,307.20 : x - Step 2: Convert to fraction form
201,611.20/302,416.80 = 103,307.20/x - Step 3: Cross multiply
201,611.20x = 302,416.80 × 103,307.20 - Step 4: Simplify right side
201,611.20x = 31,241,832,840.96 - Step 5: Solve for x
x = 31,241,832,840.96/201,611.20 - Step 6: Final answer
x = 154,960.80
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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.