Finding the Fourth Proportional to 258,293.99, 387,457.39 and 68,751.26
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Solution
The fourth proportional to 258,293.99, 387,457.39 and 68,751.26 is: 103,131.26
Step by Step Solution
- Step 1: Write the proportion equation
258,293.99 : 387,457.39 = 68,751.26 : x - Step 2: Convert to fraction form
258,293.99/387,457.39 = 68,751.26/x - Step 3: Cross multiply
258,293.99x = 387,457.39 × 68,751.26 - Step 4: Simplify right side
258,293.99x = 26,638,183,758.81 - Step 5: Solve for x
x = 26,638,183,758.81/258,293.99 - Step 6: Final answer
x = 103,131.26
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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.