Finding the Fourth Proportional to 207,985.70, 312,306.60 and 119,412.20
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Solution
The fourth proportional to 207,985.70, 312,306.60 and 119,412.20 is: 179,306.65
Step by Step Solution
- Step 1: Write the proportion equation
207,985.70 : 312,306.60 = 119,412.20 : x - Step 2: Convert to fraction form
207,985.70/312,306.60 = 119,412.20/x - Step 3: Cross multiply
207,985.70x = 312,306.60 × 119,412.20 - Step 4: Simplify right side
207,985.70x = 37,293,218,180.52 - Step 5: Solve for x
x = 37,293,218,180.52/207,985.70 - Step 6: Final answer
x = 179,306.65
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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.