Finding the Fourth Proportional to 236,130.05, 325,857.40 and 128,700.09
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Solution
The fourth proportional to 236,130.05, 325,857.40 and 128,700.09 is: 177,604.99
Step by Step Solution
- Step 1: Write the proportion equation
236,130.05 : 325,857.40 = 128,700.09 : x - Step 2: Convert to fraction form
236,130.05/325,857.40 = 128,700.09/x - Step 3: Cross multiply
236,130.05x = 325,857.40 × 128,700.09 - Step 4: Simplify right side
236,130.05x = 41,937,876,385.42 - Step 5: Solve for x
x = 41,937,876,385.42/236,130.05 - Step 6: Final answer
x = 177,604.99
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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.