Finding the Fourth Proportional to 279,216.18, 418,843.98 and 79,552.80
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Solution
The fourth proportional to 279,216.18, 418,843.98 and 79,552.80 is: 119,334.82
Step by Step Solution
- Step 1: Write the proportion equation
279,216.18 : 418,843.98 = 79,552.80 : x - Step 2: Convert to fraction form
279,216.18/418,843.98 = 79,552.80/x - Step 3: Cross multiply
279,216.18x = 418,843.98 × 79,552.80 - Step 4: Simplify right side
279,216.18x = 33,320,211,372.14 - Step 5: Solve for x
x = 33,320,211,372.14/279,216.18 - Step 6: Final answer
x = 119,334.82
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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.