Finding the Fourth Proportional to 643,390.98, 965,092.95 and 194,115.57
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Solution
The fourth proportional to 643,390.98, 965,092.95 and 194,115.57 is: 291,175.31
Step by Step Solution
- Step 1: Write the proportion equation
643,390.98 : 965,092.95 = 194,115.57 : x - Step 2: Convert to fraction form
643,390.98/965,092.95 = 194,115.57/x - Step 3: Cross multiply
643,390.98x = 965,092.95 × 194,115.57 - Step 4: Simplify right side
643,390.98x = 187,339,568,092.23 - Step 5: Solve for x
x = 187,339,568,092.23/643,390.98 - Step 6: Final answer
x = 291,175.31
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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.