Finding the Fourth Proportional to 207,783.70, 310,897.95 and 137,799.70
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Solution
The fourth proportional to 207,783.70, 310,897.95 and 137,799.70 is: 206,183.85
Step by Step Solution
- Step 1: Write the proportion equation
207,783.70 : 310,897.95 = 137,799.70 : x - Step 2: Convert to fraction form
207,783.70/310,897.95 = 137,799.70/x - Step 3: Cross multiply
207,783.70x = 310,897.95 × 137,799.70 - Step 4: Simplify right side
207,783.70x = 42,841,644,240.62 - Step 5: Solve for x
x = 42,841,644,240.62/207,783.70 - Step 6: Final answer
x = 206,183.85
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1.5x scale
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.