Finding the Fourth Proportional to 389,239.62, 537,138.50 and 228,201.93
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Solution
The fourth proportional to 389,239.62, 537,138.50 and 228,201.93 is: 314,911.52
Step by Step Solution
- Step 1: Write the proportion equation
389,239.62 : 537,138.50 = 228,201.93 : x - Step 2: Convert to fraction form
389,239.62/537,138.50 = 228,201.93/x - Step 3: Cross multiply
389,239.62x = 537,138.50 × 228,201.93 - Step 4: Simplify right side
389,239.62x = 122,576,042,092.05 - Step 5: Solve for x
x = 122,576,042,092.05/389,239.62 - Step 6: Final answer
x = 314,911.52
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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.