Finding the Fourth Proportional to 206,911.20, 310,366.80 and 107,101.99
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Solution
The fourth proportional to 206,911.20, 310,366.80 and 107,101.99 is: 160,652.98
Step by Step Solution
- Step 1: Write the proportion equation
206,911.20 : 310,366.80 = 107,101.99 : x - Step 2: Convert to fraction form
206,911.20/310,366.80 = 107,101.99/x - Step 3: Cross multiply
206,911.20x = 310,366.80 × 107,101.99 - Step 4: Simplify right side
206,911.20x = 33,240,901,134.02 - Step 5: Solve for x
x = 33,240,901,134.02/206,911.20 - Step 6: Final answer
x = 160,652.98
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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.