Finding the Fourth Proportional to 207,988.60, 311,982.90 and 176,495.80
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Solution
The fourth proportional to 207,988.60, 311,982.90 and 176,495.80 is: 264,743.70
Step by Step Solution
- Step 1: Write the proportion equation
207,988.60 : 311,982.90 = 176,495.80 : x - Step 2: Convert to fraction form
207,988.60/311,982.90 = 176,495.80/x - Step 3: Cross multiply
207,988.60x = 311,982.90 × 176,495.80 - Step 4: Simplify right side
207,988.60x = 55,063,671,521.82 - Step 5: Solve for x
x = 55,063,671,521.82/207,988.60 - Step 6: Final answer
x = 264,743.70
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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.