Finding the Fourth Proportional to 212,867.62, 293,759.28 and 117,377.68
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Solution
The fourth proportional to 212,867.62, 293,759.28 and 117,377.68 is: 161,982.28
Step by Step Solution
- Step 1: Write the proportion equation
212,867.62 : 293,759.28 = 117,377.68 : x - Step 2: Convert to fraction form
212,867.62/293,759.28 = 117,377.68/x - Step 3: Cross multiply
212,867.62x = 293,759.28 × 117,377.68 - Step 4: Simplify right side
212,867.62x = 34,480,782,764.87 - Step 5: Solve for x
x = 34,480,782,764.87/212,867.62 - Step 6: Final answer
x = 161,982.28
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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.