Finding the Fourth Proportional to 212,415.62, 293,161.55 and 127,538.15
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Solution
The fourth proportional to 212,415.62, 293,161.55 and 127,538.15 is: 176,019.46
Step by Step Solution
- Step 1: Write the proportion equation
212,415.62 : 293,161.55 = 127,538.15 : x - Step 2: Convert to fraction form
212,415.62/293,161.55 = 127,538.15/x - Step 3: Cross multiply
212,415.62x = 293,161.55 × 127,538.15 - Step 4: Simplify right side
212,415.62x = 37,389,281,738.13 - Step 5: Solve for x
x = 37,389,281,738.13/212,415.62 - Step 6: Final answer
x = 176,019.46
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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.