Finding the Fourth Proportional to 239,861.12, 331,006.20 and 132,428.84
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Solution
The fourth proportional to 239,861.12, 331,006.20 and 132,428.84 is: 182,750.61
Step by Step Solution
- Step 1: Write the proportion equation
239,861.12 : 331,006.20 = 132,428.84 : x - Step 2: Convert to fraction form
239,861.12/331,006.20 = 132,428.84/x - Step 3: Cross multiply
239,861.12x = 331,006.20 × 132,428.84 - Step 4: Simplify right side
239,861.12x = 43,834,767,098.81 - Step 5: Solve for x
x = 43,834,767,098.81/239,861.12 - Step 6: Final answer
x = 182,750.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.