Finding the Fourth Proportional to 279,379.95, 419,135.00 and 79,703.07
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Solution
The fourth proportional to 279,379.95, 419,135.00 and 79,703.07 is: 119,573.17
Step by Step Solution
- Step 1: Write the proportion equation
279,379.95 : 419,135.00 = 79,703.07 : x - Step 2: Convert to fraction form
279,379.95/419,135.00 = 79,703.07/x - Step 3: Cross multiply
279,379.95x = 419,135.00 × 79,703.07 - Step 4: Simplify right side
279,379.95x = 33,406,345,845.93 - Step 5: Solve for x
x = 33,406,345,845.93/279,379.95 - Step 6: Final answer
x = 119,573.17
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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.