Finding the Fourth Proportional to 190,723.29, 286,273.26 and 143,173.05
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Solution
The fourth proportional to 190,723.29, 286,273.26 and 143,173.05 is: 214,900.95
Step by Step Solution
- Step 1: Write the proportion equation
190,723.29 : 286,273.26 = 143,173.05 : x - Step 2: Convert to fraction form
190,723.29/286,273.26 = 143,173.05/x - Step 3: Cross multiply
190,723.29x = 286,273.26 × 143,173.05 - Step 4: Simplify right side
190,723.29x = 40,986,615,767.64 - Step 5: Solve for x
x = 40,986,615,767.64/190,723.29 - Step 6: Final answer
x = 214,900.95
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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.