Finding the Fourth Proportional to 279,390.88, 385,395.60 and 202,819.96
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Solution
The fourth proportional to 279,390.88, 385,395.60 and 202,819.96 is: 279,772.63
Step by Step Solution
- Step 1: Write the proportion equation
279,390.88 : 385,395.60 = 202,819.96 : x - Step 2: Convert to fraction form
279,390.88/385,395.60 = 202,819.96/x - Step 3: Cross multiply
279,390.88x = 385,395.60 × 202,819.96 - Step 4: Simplify right side
279,390.88x = 78,165,920,176.18 - Step 5: Solve for x
x = 78,165,920,176.18/279,390.88 - Step 6: Final answer
x = 279,772.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.