Finding the Fourth Proportional to 319,900.87, 479,802.09 and 106,672.49
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Solution
The fourth proportional to 319,900.87, 479,802.09 and 106,672.49 is: 159,992.32
Step by Step Solution
- Step 1: Write the proportion equation
319,900.87 : 479,802.09 = 106,672.49 : x - Step 2: Convert to fraction form
319,900.87/479,802.09 = 106,672.49/x - Step 3: Cross multiply
319,900.87x = 479,802.09 × 106,672.49 - Step 4: Simplify right side
319,900.87x = 51,181,681,248.49 - Step 5: Solve for x
x = 51,181,681,248.49/319,900.87 - Step 6: Final answer
x = 159,992.32
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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.