Finding the Third Proportional to 257,833.13 and 387,235.69
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Solution
The third proportional to 257,833.13 and 387,235.69 is: 581,583.45
Step by Step Solution
- Step 1: Write the proportion equation
257,833.13 : 387,235.69 = 387,235.69 : x - Step 2: Convert to fraction form
257,833.13/387,235.69 = 387,235.69/x - Step 3: Cross multiply
257,833.13x = 387,235.69 × 387,235.69 - Step 4: Simplify right side
257,833.13x = 149,951,477,673.60 - Step 5: Solve for x
x = 149,951,477,673.60/257,833.13 - Step 6: Final answer
x = 581,583.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.