Finding the Fourth Proportional to 343,812.25, 515,717.91 and 130,579.75
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Solution
The fourth proportional to 343,812.25, 515,717.91 and 130,579.75 is: 195,869.45
Step by Step Solution
- Step 1: Write the proportion equation
343,812.25 : 515,717.91 = 130,579.75 : x - Step 2: Convert to fraction form
343,812.25/515,717.91 = 130,579.75/x - Step 3: Cross multiply
343,812.25x = 515,717.91 × 130,579.75 - Step 4: Simplify right side
343,812.25x = 67,342,314,469.03 - Step 5: Solve for x
x = 67,342,314,469.03/343,812.25 - Step 6: Final answer
x = 195,869.45
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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.