Finding the Fourth Proportional to 352,991.36, 486,945.60 and 218,622.08
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Solution
The fourth proportional to 352,991.36, 486,945.60 and 218,622.08 is: 301,585.46
Step by Step Solution
- Step 1: Write the proportion equation
352,991.36 : 486,945.60 = 218,622.08 : x - Step 2: Convert to fraction form
352,991.36/486,945.60 = 218,622.08/x - Step 3: Cross multiply
352,991.36x = 486,945.60 × 218,622.08 - Step 4: Simplify right side
352,991.36x = 106,457,059,918.85 - Step 5: Solve for x
x = 106,457,059,918.85/352,991.36 - Step 6: Final answer
x = 301,585.46
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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.