Finding the Fourth Proportional to 279,146.98, 418,720.70 and 68,784.94
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Solution
The fourth proportional to 279,146.98, 418,720.70 and 68,784.94 is: 103,177.47
Step by Step Solution
- Step 1: Write the proportion equation
279,146.98 : 418,720.70 = 68,784.94 : x - Step 2: Convert to fraction form
279,146.98/418,720.70 = 68,784.94/x - Step 3: Cross multiply
279,146.98x = 418,720.70 × 68,784.94 - Step 4: Simplify right side
279,146.98x = 28,801,678,226.26 - Step 5: Solve for x
x = 28,801,678,226.26/279,146.98 - Step 6: Final answer
x = 103,177.47
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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.