Finding the Fourth Proportional to 211,163.68, 316,848.12 and 92,819.71
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Solution
The fourth proportional to 211,163.68, 316,848.12 and 92,819.71 is: 139,274.66
Step by Step Solution
- Step 1: Write the proportion equation
211,163.68 : 316,848.12 = 92,819.71 : x - Step 2: Convert to fraction form
211,163.68/316,848.12 = 92,819.71/x - Step 3: Cross multiply
211,163.68x = 316,848.12 × 92,819.71 - Step 4: Simplify right side
211,163.68x = 29,409,750,612.45 - Step 5: Solve for x
x = 29,409,750,612.45/211,163.68 - Step 6: Final answer
x = 139,274.66
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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.