Finding the Fourth Proportional to 319,049.99, 478,537.92 and 82,374.06
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Solution
The fourth proportional to 319,049.99, 478,537.92 and 82,374.06 is: 123,551.52
Step by Step Solution
- Step 1: Write the proportion equation
319,049.99 : 478,537.92 = 82,374.06 : x - Step 2: Convert to fraction form
319,049.99/478,537.92 = 82,374.06/x - Step 3: Cross multiply
319,049.99x = 478,537.92 × 82,374.06 - Step 4: Simplify right side
319,049.99x = 39,419,111,334.36 - Step 5: Solve for x
x = 39,419,111,334.36/319,049.99 - Step 6: Final answer
x = 123,551.52
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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.