Finding the Fourth Proportional to 201,683.80, 302,525.70 and 135,328.60
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Solution
The fourth proportional to 201,683.80, 302,525.70 and 135,328.60 is: 202,992.90
Step by Step Solution
- Step 1: Write the proportion equation
201,683.80 : 302,525.70 = 135,328.60 : x - Step 2: Convert to fraction form
201,683.80/302,525.70 = 135,328.60/x - Step 3: Cross multiply
201,683.80x = 302,525.70 × 135,328.60 - Step 4: Simplify right side
201,683.80x = 40,940,379,445.02 - Step 5: Solve for x
x = 40,940,379,445.02/201,683.80 - Step 6: Final answer
x = 202,992.90
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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.