Finding the Fourth Proportional to 279,797.91, 419,655.99 and 137,605.02
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Solution
The fourth proportional to 279,797.91, 419,655.99 and 137,605.02 is: 206,387.43
Step by Step Solution
- Step 1: Write the proportion equation
279,797.91 : 419,655.99 = 137,605.02 : x - Step 2: Convert to fraction form
279,797.91/419,655.99 = 137,605.02/x - Step 3: Cross multiply
279,797.91x = 419,655.99 × 137,605.02 - Step 4: Simplify right side
279,797.91x = 57,746,770,897.07 - Step 5: Solve for x
x = 57,746,770,897.07/279,797.91 - Step 6: Final answer
x = 206,387.43
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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.