Finding the Fourth Proportional to 298,638.75, 412,121.48 and 164,502.75
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Solution
The fourth proportional to 298,638.75, 412,121.48 and 164,502.75 is: 227,013.80
Step by Step Solution
- Step 1: Write the proportion equation
298,638.75 : 412,121.48 = 164,502.75 : x - Step 2: Convert to fraction form
298,638.75/412,121.48 = 164,502.75/x - Step 3: Cross multiply
298,638.75x = 412,121.48 × 164,502.75 - Step 4: Simplify right side
298,638.75x = 67,795,115,971.56 - Step 5: Solve for x
x = 67,795,115,971.56/298,638.75 - Step 6: Final answer
x = 227,013.80
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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.