Finding the Fourth Proportional to 212,351.60, 293,057.26 and 121,722.62
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Solution
The fourth proportional to 212,351.60, 293,057.26 and 121,722.62 is: 167,984.11
Step by Step Solution
- Step 1: Write the proportion equation
212,351.60 : 293,057.26 = 121,722.62 : x - Step 2: Convert to fraction form
212,351.60/293,057.26 = 121,722.62/x - Step 3: Cross multiply
212,351.60x = 293,057.26 × 121,722.62 - Step 4: Simplify right side
212,351.60x = 35,671,695,727.63 - Step 5: Solve for x
x = 35,671,695,727.63/212,351.60 - Step 6: Final answer
x = 167,984.11
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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.