Finding the Fourth Proportional to 279,511.80, 385,780.98 and 177,655.96
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Solution
The fourth proportional to 279,511.80, 385,780.98 and 177,655.96 is: 245,199.99
Step by Step Solution
- Step 1: Write the proportion equation
279,511.80 : 385,780.98 = 177,655.96 : x - Step 2: Convert to fraction form
279,511.80/385,780.98 = 177,655.96/x - Step 3: Cross multiply
279,511.80x = 385,780.98 × 177,655.96 - Step 4: Simplify right side
279,511.80x = 68,536,290,351.64 - Step 5: Solve for x
x = 68,536,290,351.64/279,511.80 - Step 6: Final answer
x = 245,199.99
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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.