Finding the Fourth Proportional to 371,935.80, 557,903.70 and 194,497.20
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Solution
The fourth proportional to 371,935.80, 557,903.70 and 194,497.20 is: 291,745.80
Step by Step Solution
- Step 1: Write the proportion equation
371,935.80 : 557,903.70 = 194,497.20 : x - Step 2: Convert to fraction form
371,935.80/557,903.70 = 194,497.20/x - Step 3: Cross multiply
371,935.80x = 557,903.70 × 194,497.20 - Step 4: Simplify right side
371,935.80x = 108,510,707,519.64 - Step 5: Solve for x
x = 108,510,707,519.64/371,935.80 - Step 6: Final answer
x = 291,745.80
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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.