Finding the Fourth Proportional to 298,715.22, 412,379.36 and 202,427.76
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Solution
The fourth proportional to 298,715.22, 412,379.36 and 202,427.76 is: 279,453.56
Step by Step Solution
- Step 1: Write the proportion equation
298,715.22 : 412,379.36 = 202,427.76 : x - Step 2: Convert to fraction form
298,715.22/412,379.36 = 202,427.76/x - Step 3: Cross multiply
298,715.22x = 412,379.36 × 202,427.76 - Step 4: Simplify right side
298,715.22x = 83,477,031,408.42 - Step 5: Solve for x
x = 83,477,031,408.42/298,715.22 - Step 6: Final answer
x = 279,453.56
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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.