Finding the Fourth Proportional to 235,997.18, 325,674.83 and 128,566.95
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Solution
The fourth proportional to 235,997.18, 325,674.83 and 128,566.95 is: 177,421.70
Step by Step Solution
- Step 1: Write the proportion equation
235,997.18 : 325,674.83 = 128,566.95 : x - Step 2: Convert to fraction form
235,997.18/325,674.83 = 128,566.95/x - Step 3: Cross multiply
235,997.18x = 325,674.83 × 128,566.95 - Step 4: Simplify right side
235,997.18x = 41,871,018,942.03 - Step 5: Solve for x
x = 41,871,018,942.03/235,997.18 - Step 6: Final answer
x = 177,421.70
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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.