Finding the Fourth Proportional to 202,548.56, 279,400.20 and 121,920.08
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Solution
The fourth proportional to 202,548.56, 279,400.20 and 121,920.08 is: 168,179.40
Step by Step Solution
- Step 1: Write the proportion equation
202,548.56 : 279,400.20 = 121,920.08 : x - Step 2: Convert to fraction form
202,548.56/279,400.20 = 121,920.08/x - Step 3: Cross multiply
202,548.56x = 279,400.20 × 121,920.08 - Step 4: Simplify right side
202,548.56x = 34,064,494,736.02 - Step 5: Solve for x
x = 34,064,494,736.02/202,548.56 - Step 6: Final answer
x = 168,179.40
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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.