Finding the Third Proportional to 270,420.75 and 391,678.88
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Solution
The third proportional to 270,420.75 and 391,678.88 is: 567,309.80
Step by Step Solution
- Step 1: Write the proportion equation
270,420.75 : 391,678.88 = 391,678.88 : x - Step 2: Convert to fraction form
270,420.75/391,678.88 = 391,678.88/x - Step 3: Cross multiply
270,420.75x = 391,678.88 × 391,678.88 - Step 4: Simplify right side
270,420.75x = 153,412,341,121.27 - Step 5: Solve for x
x = 153,412,341,121.27/270,420.75 - Step 6: Final answer
x = 567,309.80
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These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.