Finding the Fourth Proportional to 218,403.70, 301,425.57 and 125,305.96
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Solution
The fourth proportional to 218,403.70, 301,425.57 and 125,305.96 is: 172,938.56
Step by Step Solution
- Step 1: Write the proportion equation
218,403.70 : 301,425.57 = 125,305.96 : x - Step 2: Convert to fraction form
218,403.70/301,425.57 = 125,305.96/x - Step 3: Cross multiply
218,403.70x = 301,425.57 × 125,305.96 - Step 4: Simplify right side
218,403.70x = 37,770,420,417.40 - Step 5: Solve for x
x = 37,770,420,417.40/218,403.70 - Step 6: Final answer
x = 172,938.56
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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.