Finding the Fourth Proportional to 389,049.93, 536,889.40 and 214,616.19
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Solution
The fourth proportional to 389,049.93, 536,889.40 and 214,616.19 is: 296,170.62
Step by Step Solution
- Step 1: Write the proportion equation
389,049.93 : 536,889.40 = 214,616.19 : x - Step 2: Convert to fraction form
389,049.93/536,889.40 = 214,616.19/x - Step 3: Cross multiply
389,049.93x = 536,889.40 × 214,616.19 - Step 4: Simplify right side
389,049.93x = 115,225,159,760.99 - Step 5: Solve for x
x = 115,225,159,760.99/389,049.93 - Step 6: Final answer
x = 296,170.62
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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.