Finding the Fourth Proportional to 393,000.11, 589,624.71 and 140,274.99
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Solution
The fourth proportional to 393,000.11, 589,624.71 and 140,274.99 is: 210,456.94
Step by Step Solution
- Step 1: Write the proportion equation
393,000.11 : 589,624.71 = 140,274.99 : x - Step 2: Convert to fraction form
393,000.11/589,624.71 = 140,274.99/x - Step 3: Cross multiply
393,000.11x = 589,624.71 × 140,274.99 - Step 4: Simplify right side
393,000.11x = 82,709,600,299.00 - Step 5: Solve for x
x = 82,709,600,299.00/393,000.11 - Step 6: Final answer
x = 210,456.94
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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.