Finding the Fourth Proportional to 207,963.80, 311,945.70 and 158,811.80
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Solution
The fourth proportional to 207,963.80, 311,945.70 and 158,811.80 is: 238,217.70
Step by Step Solution
- Step 1: Write the proportion equation
207,963.80 : 311,945.70 = 158,811.80 : x - Step 2: Convert to fraction form
207,963.80/311,945.70 = 158,811.80/x - Step 3: Cross multiply
207,963.80x = 311,945.70 × 158,811.80 - Step 4: Simplify right side
207,963.80x = 49,540,658,119.26 - Step 5: Solve for x
x = 49,540,658,119.26/207,963.80 - Step 6: Final answer
x = 238,217.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.