Finding the Third Proportional to 257,574.94 and 378,912.94
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Solution
The third proportional to 257,574.94 and 378,912.94 is: 557,410.65
Step by Step Solution
- Step 1: Write the proportion equation
257,574.94 : 378,912.94 = 378,912.94 : x - Step 2: Convert to fraction form
257,574.94/378,912.94 = 378,912.94/x - Step 3: Cross multiply
257,574.94x = 378,912.94 × 378,912.94 - Step 4: Simplify right side
257,574.94x = 143,575,014,204.88 - Step 5: Solve for x
x = 143,575,014,204.88/257,574.94 - Step 6: Final answer
x = 557,410.65
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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.