Finding the Fourth Proportional to 279,115.61, 385,288.99 and 197,868.49
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Solution
The fourth proportional to 279,115.61, 385,288.99 and 197,868.49 is: 273,136.11
Step by Step Solution
- Step 1: Write the proportion equation
279,115.61 : 385,288.99 = 197,868.49 : x - Step 2: Convert to fraction form
279,115.61/385,288.99 = 197,868.49/x - Step 3: Cross multiply
279,115.61x = 385,288.99 × 197,868.49 - Step 4: Simplify right side
279,115.61x = 76,236,549,207.03 - Step 5: Solve for x
x = 76,236,549,207.03/279,115.61 - Step 6: Final answer
x = 273,136.11
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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.