Finding the Fourth Proportional to 387,031.99, 534,086.42 and 214,960.96
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Solution
The fourth proportional to 387,031.99, 534,086.42 and 214,960.96 is: 296,636.28
Step by Step Solution
- Step 1: Write the proportion equation
387,031.99 : 534,086.42 = 214,960.96 : x - Step 2: Convert to fraction form
387,031.99/534,086.42 = 214,960.96/x - Step 3: Cross multiply
387,031.99x = 534,086.42 × 214,960.96 - Step 4: Simplify right side
387,031.99x = 114,807,729,566.16 - Step 5: Solve for x
x = 114,807,729,566.16/387,031.99 - Step 6: Final answer
x = 296,636.28
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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.