Finding the Fourth Proportional to 214,128.06, 321,197.40 and 71,975.49
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Solution
The fourth proportional to 214,128.06, 321,197.40 and 71,975.49 is: 107,965.02
Step by Step Solution
- Step 1: Write the proportion equation
214,128.06 : 321,197.40 = 71,975.49 : x - Step 2: Convert to fraction form
214,128.06/321,197.40 = 71,975.49/x - Step 3: Cross multiply
214,128.06x = 321,197.40 × 71,975.49 - Step 4: Simplify right side
214,128.06x = 23,118,340,251.73 - Step 5: Solve for x
x = 23,118,340,251.73/214,128.06 - Step 6: Final answer
x = 107,965.02
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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.