Finding the Fourth Proportional to 212,036.46, 292,627.02 and 121,420.96
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Solution
The fourth proportional to 212,036.46, 292,627.02 and 121,420.96 is: 167,570.49
Step by Step Solution
- Step 1: Write the proportion equation
212,036.46 : 292,627.02 = 121,420.96 : x - Step 2: Convert to fraction form
212,036.46/292,627.02 = 121,420.96/x - Step 3: Cross multiply
212,036.46x = 292,627.02 × 121,420.96 - Step 4: Simplify right side
212,036.46x = 35,531,053,690.34 - Step 5: Solve for x
x = 35,531,053,690.34/212,036.46 - Step 6: Final answer
x = 167,570.49
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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.