Finding the Third Proportional to 286,089.75 and 420,375.75
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Solution
The third proportional to 286,089.75 and 420,375.75 is: 617,693.47
Step by Step Solution
- Step 1: Write the proportion equation
286,089.75 : 420,375.75 = 420,375.75 : x - Step 2: Convert to fraction form
286,089.75/420,375.75 = 420,375.75/x - Step 3: Cross multiply
286,089.75x = 420,375.75 × 420,375.75 - Step 4: Simplify right side
286,089.75x = 176,715,771,188.06 - Step 5: Solve for x
x = 176,715,771,188.06/286,089.75 - Step 6: Final answer
x = 617,693.47
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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.