Finding the Fourth Proportional to 258,471.23, 387,707.07 and 80,992.08
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Solution
The fourth proportional to 258,471.23, 387,707.07 and 80,992.08 is: 121,488.19
Step by Step Solution
- Step 1: Write the proportion equation
258,471.23 : 387,707.07 = 80,992.08 : x - Step 2: Convert to fraction form
258,471.23/387,707.07 = 80,992.08/x - Step 3: Cross multiply
258,471.23x = 387,707.07 × 80,992.08 - Step 4: Simplify right side
258,471.23x = 31,401,202,030.01 - Step 5: Solve for x
x = 31,401,202,030.01/258,471.23 - Step 6: Final answer
x = 121,488.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.