Finding the Fourth Proportional to 178,685.01, 246,420.75 and 121,410.09
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Solution
The fourth proportional to 178,685.01, 246,420.75 and 121,410.09 is: 167,434.11
Step by Step Solution
- Step 1: Write the proportion equation
178,685.01 : 246,420.75 = 121,410.09 : x - Step 2: Convert to fraction form
178,685.01/246,420.75 = 121,410.09/x - Step 3: Cross multiply
178,685.01x = 246,420.75 × 121,410.09 - Step 4: Simplify right side
178,685.01x = 29,917,965,435.37 - Step 5: Solve for x
x = 29,917,965,435.37/178,685.01 - Step 6: Final answer
x = 167,434.11
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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.