Finding the Fourth Proportional to 328,983.56, 493,472.81 and 134,235.99
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Solution
The fourth proportional to 328,983.56, 493,472.81 and 134,235.99 is: 201,352.95
Step by Step Solution
- Step 1: Write the proportion equation
328,983.56 : 493,472.81 = 134,235.99 : x - Step 2: Convert to fraction form
328,983.56/493,472.81 = 134,235.99/x - Step 3: Cross multiply
328,983.56x = 493,472.81 × 134,235.99 - Step 4: Simplify right side
328,983.56x = 66,241,810,517.25 - Step 5: Solve for x
x = 66,241,810,517.25/328,983.56 - Step 6: Final answer
x = 201,352.95
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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.