Finding the Fourth Proportional to 330,755.68, 496,133.52 and 81,437.68
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Solution
The fourth proportional to 330,755.68, 496,133.52 and 81,437.68 is: 122,156.52
Step by Step Solution
- Step 1: Write the proportion equation
330,755.68 : 496,133.52 = 81,437.68 : x - Step 2: Convert to fraction form
330,755.68/496,133.52 = 81,437.68/x - Step 3: Cross multiply
330,755.68x = 496,133.52 × 81,437.68 - Step 4: Simplify right side
330,755.68x = 40,403,962,839.03 - Step 5: Solve for x
x = 40,403,962,839.03/330,755.68 - Step 6: Final answer
x = 122,156.52
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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.