Finding the Fourth Proportional to 211,185.68, 316,753.92 and 84,820.82
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Solution
The fourth proportional to 211,185.68, 316,753.92 and 84,820.82 is: 127,221.35
Step by Step Solution
- Step 1: Write the proportion equation
211,185.68 : 316,753.92 = 84,820.82 : x - Step 2: Convert to fraction form
211,185.68/316,753.92 = 84,820.82/x - Step 3: Cross multiply
211,185.68x = 316,753.92 × 84,820.82 - Step 4: Simplify right side
211,185.68x = 26,867,327,192.03 - Step 5: Solve for x
x = 26,867,327,192.03/211,185.68 - Step 6: Final answer
x = 127,221.35
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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.