Finding the Fourth Proportional to 272,606.10, 408,034.35 and 213,119.70
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Solution
The fourth proportional to 272,606.10, 408,034.35 and 213,119.70 is: 318,995.64
Step by Step Solution
- Step 1: Write the proportion equation
272,606.10 : 408,034.35 = 213,119.70 : x - Step 2: Convert to fraction form
272,606.10/408,034.35 = 213,119.70/x - Step 3: Cross multiply
272,606.10x = 408,034.35 × 213,119.70 - Step 4: Simplify right side
272,606.10x = 86,960,158,261.70 - Step 5: Solve for x
x = 86,960,158,261.70/272,606.10 - Step 6: Final answer
x = 318,995.64
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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.