Finding the Third Proportional to 306,726.75 and 421,134.19
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Solution
The third proportional to 306,726.75 and 421,134.19 is: 578,214.99
Step by Step Solution
- Step 1: Write the proportion equation
306,726.75 : 421,134.19 = 421,134.19 : x - Step 2: Convert to fraction form
306,726.75/421,134.19 = 421,134.19/x - Step 3: Cross multiply
306,726.75x = 421,134.19 × 421,134.19 - Step 4: Simplify right side
306,726.75x = 177,354,003,881.29 - Step 5: Solve for x
x = 177,354,003,881.29/306,726.75 - Step 6: Final answer
x = 578,214.99
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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.