Finding the Fourth Proportional to 317,135.61, 474,770.30 and 211,693.05
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Solution
The fourth proportional to 317,135.61, 474,770.30 and 211,693.05 is: 316,916.70
Step by Step Solution
- Step 1: Write the proportion equation
317,135.61 : 474,770.30 = 211,693.05 : x - Step 2: Convert to fraction form
317,135.61/474,770.30 = 211,693.05/x - Step 3: Cross multiply
317,135.61x = 474,770.30 × 211,693.05 - Step 4: Simplify right side
317,135.61x = 100,505,571,797.95 - Step 5: Solve for x
x = 100,505,571,797.95/317,135.61 - Step 6: Final answer
x = 316,916.70
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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.