Finding the Fourth Proportional to 212,728.44, 293,579.07 and 122,113.74
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Solution
The fourth proportional to 212,728.44, 293,579.07 and 122,113.74 is: 168,524.90
Step by Step Solution
- Step 1: Write the proportion equation
212,728.44 : 293,579.07 = 122,113.74 : x - Step 2: Convert to fraction form
212,728.44/293,579.07 = 122,113.74/x - Step 3: Cross multiply
212,728.44x = 293,579.07 × 122,113.74 - Step 4: Simplify right side
212,728.44x = 35,850,038,223.42 - Step 5: Solve for x
x = 35,850,038,223.42/212,728.44 - Step 6: Final answer
x = 168,524.90
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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.