Finding the Fourth Proportional to 175,739.40, 263,609.10 and 128,737.80
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Solution
The fourth proportional to 175,739.40, 263,609.10 and 128,737.80 is: 193,106.70
Step by Step Solution
- Step 1: Write the proportion equation
175,739.40 : 263,609.10 = 128,737.80 : x - Step 2: Convert to fraction form
175,739.40/263,609.10 = 128,737.80/x - Step 3: Cross multiply
175,739.40x = 263,609.10 × 128,737.80 - Step 4: Simplify right side
175,739.40x = 33,936,455,593.98 - Step 5: Solve for x
x = 33,936,455,593.98/175,739.40 - Step 6: Final answer
x = 193,106.70
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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.