Finding the Third Proportional to 128,218.57 and 296,802.98
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Solution
The third proportional to 128,218.57 and 296,802.98 is: 687,045.65
Step by Step Solution
- Step 1: Write the proportion equation
128,218.57 : 296,802.98 = 296,802.98 : x - Step 2: Convert to fraction form
128,218.57/296,802.98 = 296,802.98/x - Step 3: Cross multiply
128,218.57x = 296,802.98 × 296,802.98 - Step 4: Simplify right side
128,218.57x = 88,092,011,533.91 - Step 5: Solve for x
x = 88,092,011,533.91/128,218.57 - Step 6: Final answer
x = 687,045.65
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Why These Related Problems?
These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.