Finding the Fourth Proportional to 194,299.21, 291,488.09 and 81,979.70
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Solution
The fourth proportional to 194,299.21, 291,488.09 and 81,979.70 is: 122,986.12
Step by Step Solution
- Step 1: Write the proportion equation
194,299.21 : 291,488.09 = 81,979.70 : x - Step 2: Convert to fraction form
194,299.21/291,488.09 = 81,979.70/x - Step 3: Cross multiply
194,299.21x = 291,488.09 × 81,979.70 - Step 4: Simplify right side
194,299.21x = 23,896,106,171.77 - Step 5: Solve for x
x = 23,896,106,171.77/194,299.21 - Step 6: Final answer
x = 122,986.12
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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.