Finding the Fourth Proportional to 386,513.44, 533,287.04 and 223,129.92
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Solution
The fourth proportional to 386,513.44, 533,287.04 and 223,129.92 is: 307,860.69
Step by Step Solution
- Step 1: Write the proportion equation
386,513.44 : 533,287.04 = 223,129.92 : x - Step 2: Convert to fraction form
386,513.44/533,287.04 = 223,129.92/x - Step 3: Cross multiply
386,513.44x = 533,287.04 × 223,129.92 - Step 4: Simplify right side
386,513.44x = 118,992,294,572.24 - Step 5: Solve for x
x = 118,992,294,572.24/386,513.44 - Step 6: Final answer
x = 307,860.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.