Finding the Fourth Proportional to 212,388.90, 293,097.69 and 121,750.08
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Solution
The fourth proportional to 212,388.90, 293,097.69 and 121,750.08 is: 168,015.69
Step by Step Solution
- Step 1: Write the proportion equation
212,388.90 : 293,097.69 = 121,750.08 : x - Step 2: Convert to fraction form
212,388.90/293,097.69 = 121,750.08/x - Step 3: Cross multiply
212,388.90x = 293,097.69 × 121,750.08 - Step 4: Simplify right side
212,388.90x = 35,684,667,205.32 - Step 5: Solve for x
x = 35,684,667,205.32/212,388.90 - Step 6: Final answer
x = 168,015.69
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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.