Finding the Fourth Proportional to 305,051.39, 420,970.18 and 167,230.07
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Solution
The fourth proportional to 305,051.39, 420,970.18 and 167,230.07 is: 230,777.09
Step by Step Solution
- Step 1: Write the proportion equation
305,051.39 : 420,970.18 = 167,230.07 : x - Step 2: Convert to fraction form
305,051.39/420,970.18 = 167,230.07/x - Step 3: Cross multiply
305,051.39x = 420,970.18 × 167,230.07 - Step 4: Simplify right side
305,051.39x = 70,398,870,564.46 - Step 5: Solve for x
x = 70,398,870,564.46/305,051.39 - Step 6: Final answer
x = 230,777.09
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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.