Finding the Fourth Proportional to 178,727.40, 246,649.86 and 102,259.08
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Solution
The fourth proportional to 178,727.40, 246,649.86 and 102,259.08 is: 141,120.99
Step by Step Solution
- Step 1: Write the proportion equation
178,727.40 : 246,649.86 = 102,259.08 : x - Step 2: Convert to fraction form
178,727.40/246,649.86 = 102,259.08/x - Step 3: Cross multiply
178,727.40x = 246,649.86 × 102,259.08 - Step 4: Simplify right side
178,727.40x = 25,222,187,765.73 - Step 5: Solve for x
x = 25,222,187,765.73/178,727.40 - Step 6: Final answer
x = 141,120.99
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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.