Finding the Third Proportional to 128,810.25 and 189,347.63
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Solution
The third proportional to 128,810.25 and 189,347.63 is: 278,335.95
Step by Step Solution
- Step 1: Write the proportion equation
128,810.25 : 189,347.63 = 189,347.63 : x - Step 2: Convert to fraction form
128,810.25/189,347.63 = 189,347.63/x - Step 3: Cross multiply
128,810.25x = 189,347.63 × 189,347.63 - Step 4: Simplify right side
128,810.25x = 35,852,523,093.14 - Step 5: Solve for x
x = 35,852,523,093.14/128,810.25 - Step 6: Final answer
x = 278,335.95
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Why These Related Problems?
These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.