Finding the Fourth Proportional to 209,296.18, 288,830.64 and 113,803.66
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Solution
The fourth proportional to 209,296.18, 288,830.64 and 113,803.66 is: 157,050.09
Step by Step Solution
- Step 1: Write the proportion equation
209,296.18 : 288,830.64 = 113,803.66 : x - Step 2: Convert to fraction form
209,296.18/288,830.64 = 113,803.66/x - Step 3: Cross multiply
209,296.18x = 288,830.64 × 113,803.66 - Step 4: Simplify right side
209,296.18x = 32,869,983,952.14 - Step 5: Solve for x
x = 32,869,983,952.14/209,296.18 - Step 6: Final answer
x = 157,050.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.