Finding the Fourth Proportional to 214,419.32, 321,223.01 and 143,126.99
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Solution
The fourth proportional to 214,419.32, 321,223.01 and 143,126.99 is: 214,419.49
Step by Step Solution
- Step 1: Write the proportion equation
214,419.32 : 321,223.01 = 143,126.99 : x - Step 2: Convert to fraction form
214,419.32/321,223.01 = 143,126.99/x - Step 3: Cross multiply
214,419.32x = 321,223.01 × 143,126.99 - Step 4: Simplify right side
214,419.32x = 45,975,680,218.29 - Step 5: Solve for x
x = 45,975,680,218.29/214,419.32 - Step 6: Final answer
x = 214,419.49
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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.