Finding the Fourth Proportional to 175,617.80, 263,426.70 and 128,961.80
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Solution
The fourth proportional to 175,617.80, 263,426.70 and 128,961.80 is: 193,442.70
Step by Step Solution
- Step 1: Write the proportion equation
175,617.80 : 263,426.70 = 128,961.80 : x - Step 2: Convert to fraction form
175,617.80/263,426.70 = 128,961.80/x - Step 3: Cross multiply
175,617.80x = 263,426.70 × 128,961.80 - Step 4: Simplify right side
175,617.80x = 33,971,981,400.06 - Step 5: Solve for x
x = 33,971,981,400.06/175,617.80 - Step 6: Final answer
x = 193,442.70
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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.