Finding the Fourth Proportional to 205,772.40, 283,976.96 and 115,122.96
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Solution
The fourth proportional to 205,772.40, 283,976.96 and 115,122.96 is: 158,875.87
Step by Step Solution
- Step 1: Write the proportion equation
205,772.40 : 283,976.96 = 115,122.96 : x - Step 2: Convert to fraction form
205,772.40/283,976.96 = 115,122.96/x - Step 3: Cross multiply
205,772.40x = 283,976.96 × 115,122.96 - Step 4: Simplify right side
205,772.40x = 32,692,268,207.00 - Step 5: Solve for x
x = 32,692,268,207.00/205,772.40 - Step 6: Final answer
x = 158,875.87
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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.