Finding the Fourth Proportional to 202,590.40, 303,448.20 and 131,731.60
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Solution
The fourth proportional to 202,590.40, 303,448.20 and 131,731.60 is: 197,312.99
Step by Step Solution
- Step 1: Write the proportion equation
202,590.40 : 303,448.20 = 131,731.60 : x - Step 2: Convert to fraction form
202,590.40/303,448.20 = 131,731.60/x - Step 3: Cross multiply
202,590.40x = 303,448.20 × 131,731.60 - Step 4: Simplify right side
202,590.40x = 39,973,716,903.12 - Step 5: Solve for x
x = 39,973,716,903.12/202,590.40 - Step 6: Final answer
x = 197,312.99
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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.