Finding the Third Proportional to 128,398.50 and 185,901.75
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Solution
The third proportional to 128,398.50 and 185,901.75 is: 269,157.82
Step by Step Solution
- Step 1: Write the proportion equation
128,398.50 : 185,901.75 = 185,901.75 : x - Step 2: Convert to fraction form
128,398.50/185,901.75 = 185,901.75/x - Step 3: Cross multiply
128,398.50x = 185,901.75 × 185,901.75 - Step 4: Simplify right side
128,398.50x = 34,559,460,653.06 - Step 5: Solve for x
x = 34,559,460,653.06/128,398.50 - Step 6: Final answer
x = 269,157.82
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These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.