Finding the Fourth Proportional to 328,951.80, 493,427.70 and 129,205.80
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Solution
The fourth proportional to 328,951.80, 493,427.70 and 129,205.80 is: 193,808.70
Step by Step Solution
- Step 1: Write the proportion equation
328,951.80 : 493,427.70 = 129,205.80 : x - Step 2: Convert to fraction form
328,951.80/493,427.70 = 129,205.80/x - Step 3: Cross multiply
328,951.80x = 493,427.70 × 129,205.80 - Step 4: Simplify right side
328,951.80x = 63,753,720,720.66 - Step 5: Solve for x
x = 63,753,720,720.66/328,951.80 - Step 6: Final answer
x = 193,808.70
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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.