Finding the Fourth Proportional to 178,649.28, 246,465.84 and 107,032.32
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Solution
The fourth proportional to 178,649.28, 246,465.84 and 107,032.32 is: 147,662.56
Step by Step Solution
- Step 1: Write the proportion equation
178,649.28 : 246,465.84 = 107,032.32 : x - Step 2: Convert to fraction form
178,649.28/246,465.84 = 107,032.32/x - Step 3: Cross multiply
178,649.28x = 246,465.84 × 107,032.32 - Step 4: Simplify right side
178,649.28x = 26,379,810,655.95 - Step 5: Solve for x
x = 26,379,810,655.95/178,649.28 - Step 6: Final answer
x = 147,662.56
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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.