Finding the Fourth Proportional to 170,646.38, 255,770.25 and 128,390.70
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Solution
The fourth proportional to 170,646.38, 255,770.25 and 128,390.70 is: 192,436.09
Step by Step Solution
- Step 1: Write the proportion equation
170,646.38 : 255,770.25 = 128,390.70 : x - Step 2: Convert to fraction form
170,646.38/255,770.25 = 128,390.70/x - Step 3: Cross multiply
170,646.38x = 255,770.25 × 128,390.70 - Step 4: Simplify right side
170,646.38x = 32,838,521,436.68 - Step 5: Solve for x
x = 32,838,521,436.68/170,646.38 - Step 6: Final answer
x = 192,436.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.