Finding the Fourth Proportional to 212,331.60, 293,018.60 and 121,692.92
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Solution
The fourth proportional to 212,331.60, 293,018.60 and 121,692.92 is: 167,936.79
Step by Step Solution
- Step 1: Write the proportion equation
212,331.60 : 293,018.60 = 121,692.92 : x - Step 2: Convert to fraction form
212,331.60/293,018.60 = 121,692.92/x - Step 3: Cross multiply
212,331.60x = 293,018.60 × 121,692.92 - Step 4: Simplify right side
212,331.60x = 35,658,286,974.75 - Step 5: Solve for x
x = 35,658,286,974.75/212,331.60 - Step 6: Final answer
x = 167,936.79
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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.