Finding the Fourth Proportional to 319,903.62, 479,806.21 and 106,675.23
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Solution
The fourth proportional to 319,903.62, 479,806.21 and 106,675.23 is: 159,996.43
Step by Step Solution
- Step 1: Write the proportion equation
319,903.62 : 479,806.21 = 106,675.23 : x - Step 2: Convert to fraction form
319,903.62/479,806.21 = 106,675.23/x - Step 3: Cross multiply
319,903.62x = 479,806.21 × 106,675.23 - Step 4: Simplify right side
319,903.62x = 51,183,437,807.18 - Step 5: Solve for x
x = 51,183,437,807.18/319,903.62 - Step 6: Final answer
x = 159,996.43
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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.