Finding the Fourth Proportional to 316,755.70, 437,122.95 and 173,520.88
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Solution
The fourth proportional to 316,755.70, 437,122.95 and 173,520.88 is: 239,458.86
Step by Step Solution
- Step 1: Write the proportion equation
316,755.70 : 437,122.95 = 173,520.88 : x - Step 2: Convert to fraction form
316,755.70/437,122.95 = 173,520.88/x - Step 3: Cross multiply
316,755.70x = 437,122.95 × 173,520.88 - Step 4: Simplify right side
316,755.70x = 75,849,958,952.20 - Step 5: Solve for x
x = 75,849,958,952.20/316,755.70 - Step 6: Final answer
x = 239,458.86
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.