Finding the Third Proportional to 128,897.25 and 189,603.75
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Solution
The third proportional to 128,897.25 and 189,603.75 is: 278,901.08
Step by Step Solution
- Step 1: Write the proportion equation
128,897.25 : 189,603.75 = 189,603.75 : x - Step 2: Convert to fraction form
128,897.25/189,603.75 = 189,603.75/x - Step 3: Cross multiply
128,897.25x = 189,603.75 × 189,603.75 - Step 4: Simplify right side
128,897.25x = 35,949,582,014.06 - Step 5: Solve for x
x = 35,949,582,014.06/128,897.25 - Step 6: Final answer
x = 278,901.08
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These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.