Finding the Fourth Proportional to 209,128.57, 313,693.91 and 51,357.08
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Solution
The fourth proportional to 209,128.57, 313,693.91 and 51,357.08 is: 77,035.88
Step by Step Solution
- Step 1: Write the proportion equation
209,128.57 : 313,693.91 = 51,357.08 : x - Step 2: Convert to fraction form
209,128.57/313,693.91 = 51,357.08/x - Step 3: Cross multiply
209,128.57x = 313,693.91 × 51,357.08 - Step 4: Simplify right side
209,128.57x = 16,110,403,231.38 - Step 5: Solve for x
x = 16,110,403,231.38/209,128.57 - Step 6: Final answer
x = 77,035.88
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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.