Finding the Fourth Proportional to 319,717.73, 479,472.78 and 106,428.36
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Solution
The fourth proportional to 319,717.73, 479,472.78 and 106,428.36 is: 159,607.99
Step by Step Solution
- Step 1: Write the proportion equation
319,717.73 : 479,472.78 = 106,428.36 : x - Step 2: Convert to fraction form
319,717.73/479,472.78 = 106,428.36/x - Step 3: Cross multiply
319,717.73x = 479,472.78 × 106,428.36 - Step 4: Simplify right side
319,717.73x = 51,029,503,837.17 - Step 5: Solve for x
x = 51,029,503,837.17/319,717.73 - Step 6: Final answer
x = 159,607.99
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1.5x scale
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.