Finding the Third Proportional to 128,030.63 and 279,753.75
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Solution
The third proportional to 128,030.63 and 279,753.75 is: 611,276.88
Step by Step Solution
- Step 1: Write the proportion equation
128,030.63 : 279,753.75 = 279,753.75 : x - Step 2: Convert to fraction form
128,030.63/279,753.75 = 279,753.75/x - Step 3: Cross multiply
128,030.63x = 279,753.75 × 279,753.75 - Step 4: Simplify right side
128,030.63x = 78,262,160,639.06 - Step 5: Solve for x
x = 78,262,160,639.06/128,030.63 - Step 6: Final answer
x = 611,276.88
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Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.