Finding the Fourth Proportional to 201,761.70, 301,864.95 and 131,777.70
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Solution
The fourth proportional to 201,761.70, 301,864.95 and 131,777.70 is: 197,158.67
Step by Step Solution
- Step 1: Write the proportion equation
201,761.70 : 301,864.95 = 131,777.70 : x - Step 2: Convert to fraction form
201,761.70/301,864.95 = 131,777.70/x - Step 3: Cross multiply
201,761.70x = 301,864.95 × 131,777.70 - Step 4: Simplify right side
201,761.70x = 39,779,068,821.62 - Step 5: Solve for x
x = 39,779,068,821.62/201,761.70 - Step 6: Final answer
x = 197,158.67
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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.