Finding the Fourth Proportional to 201,409.60, 302,211.60 and 142,117.60
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Solution
The fourth proportional to 201,409.60, 302,211.60 and 142,117.60 is: 213,244.99
Step by Step Solution
- Step 1: Write the proportion equation
201,409.60 : 302,211.60 = 142,117.60 : x - Step 2: Convert to fraction form
201,409.60/302,211.60 = 142,117.60/x - Step 3: Cross multiply
201,409.60x = 302,211.60 × 142,117.60 - Step 4: Simplify right side
201,409.60x = 42,949,587,284.16 - Step 5: Solve for x
x = 42,949,587,284.16/201,409.60 - Step 6: Final answer
x = 213,244.99
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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.