Finding the Fourth Proportional to 305,765.70, 421,948.62 and 169,795.32
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Solution
The fourth proportional to 305,765.70, 421,948.62 and 169,795.32 is: 234,313.07
Step by Step Solution
- Step 1: Write the proportion equation
305,765.70 : 421,948.62 = 169,795.32 : x - Step 2: Convert to fraction form
305,765.70/421,948.62 = 169,795.32/x - Step 3: Cross multiply
305,765.70x = 421,948.62 × 169,795.32 - Step 4: Simplify right side
305,765.70x = 71,644,900,956.46 - Step 5: Solve for x
x = 71,644,900,956.46/305,765.70 - Step 6: Final answer
x = 234,313.07
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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.