Finding the Fourth Proportional to 298,716.60, 412,381.26 and 202,429.14
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Solution
The fourth proportional to 298,716.60, 412,381.26 and 202,429.14 is: 279,455.46
Step by Step Solution
- Step 1: Write the proportion equation
298,716.60 : 412,381.26 = 202,429.14 : x - Step 2: Convert to fraction form
298,716.60/412,381.26 = 202,429.14/x - Step 3: Cross multiply
298,716.60x = 412,381.26 × 202,429.14 - Step 4: Simplify right side
298,716.60x = 83,477,983,813.92 - Step 5: Solve for x
x = 83,477,983,813.92/298,716.60 - Step 6: Final answer
x = 279,455.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.