Finding the Fourth Proportional to 212,525.20, 293,273.46 and 121,876.79
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Solution
The fourth proportional to 212,525.20, 293,273.46 and 121,876.79 is: 168,183.47
Step by Step Solution
- Step 1: Write the proportion equation
212,525.20 : 293,273.46 = 121,876.79 : x - Step 2: Convert to fraction form
212,525.20/293,273.46 = 121,876.79/x - Step 3: Cross multiply
212,525.20x = 293,273.46 × 121,876.79 - Step 4: Simplify right side
212,525.20x = 35,743,226,430.63 - Step 5: Solve for x
x = 35,743,226,430.63/212,525.20 - Step 6: Final answer
x = 168,183.47
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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.