Finding the Fourth Proportional to 211,591.08, 317,385.56 and 74,915.58
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Solution
The fourth proportional to 211,591.08, 317,385.56 and 74,915.58 is: 112,372.99
Step by Step Solution
- Step 1: Write the proportion equation
211,591.08 : 317,385.56 = 74,915.58 : x - Step 2: Convert to fraction form
211,591.08/317,385.56 = 74,915.58/x - Step 3: Cross multiply
211,591.08x = 317,385.56 × 74,915.58 - Step 4: Simplify right side
211,591.08x = 23,777,122,936.45 - Step 5: Solve for x
x = 23,777,122,936.45/211,591.08 - Step 6: Final answer
x = 112,372.99
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1.5x scale
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.