Finding the Fourth Proportional to 258,227.99, 387,342.29 and 80,735.93
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Solution
The fourth proportional to 258,227.99, 387,342.29 and 80,735.93 is: 121,103.99
Step by Step Solution
- Step 1: Write the proportion equation
258,227.99 : 387,342.29 = 80,735.93 : x - Step 2: Convert to fraction form
258,227.99/387,342.29 = 80,735.93/x - Step 3: Cross multiply
258,227.99x = 387,342.29 × 80,735.93 - Step 4: Simplify right side
258,227.99x = 31,272,440,011.48 - Step 5: Solve for x
x = 31,272,440,011.48/258,227.99 - Step 6: Final answer
x = 121,103.99
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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.