Finding the Fourth Proportional to 343,707.48, 515,438.19 and 119,007.60
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Solution
The fourth proportional to 343,707.48, 515,438.19 and 119,007.60 is: 178,468.80
Step by Step Solution
- Step 1: Write the proportion equation
343,707.48 : 515,438.19 = 119,007.60 : x - Step 2: Convert to fraction form
343,707.48/515,438.19 = 119,007.60/x - Step 3: Cross multiply
343,707.48x = 515,438.19 × 119,007.60 - Step 4: Simplify right side
343,707.48x = 61,341,061,940.24 - Step 5: Solve for x
x = 61,341,061,940.24/343,707.48 - Step 6: Final answer
x = 178,468.80
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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.