Finding the Third Proportional to 256,810.50 and 399,201.75
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Solution
The third proportional to 256,810.50 and 399,201.75 is: 620,543.31
Step by Step Solution
- Step 1: Write the proportion equation
256,810.50 : 399,201.75 = 399,201.75 : x - Step 2: Convert to fraction form
256,810.50/399,201.75 = 399,201.75/x - Step 3: Cross multiply
256,810.50x = 399,201.75 × 399,201.75 - Step 4: Simplify right side
256,810.50x = 159,362,037,203.06 - Step 5: Solve for x
x = 159,362,037,203.06/256,810.50 - Step 6: Final answer
x = 620,543.31
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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.