Finding the Fourth Proportional to 215,715.80, 323,573.70 and 110,739.80
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Solution
The fourth proportional to 215,715.80, 323,573.70 and 110,739.80 is: 166,109.70
Step by Step Solution
- Step 1: Write the proportion equation
215,715.80 : 323,573.70 = 110,739.80 : x - Step 2: Convert to fraction form
215,715.80/323,573.70 = 110,739.80/x - Step 3: Cross multiply
215,715.80x = 323,573.70 × 110,739.80 - Step 4: Simplify right side
215,715.80x = 35,832,486,823.26 - Step 5: Solve for x
x = 35,832,486,823.26/215,715.80 - Step 6: Final answer
x = 166,109.70
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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.