Finding the Fourth Proportional to 236,786.14, 326,769.69 and 129,363.13
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Solution
The fourth proportional to 236,786.14, 326,769.69 and 129,363.13 is: 178,523.75
Step by Step Solution
- Step 1: Write the proportion equation
236,786.14 : 326,769.69 = 129,363.13 : x - Step 2: Convert to fraction form
236,786.14/326,769.69 = 129,363.13/x - Step 3: Cross multiply
236,786.14x = 326,769.69 × 129,363.13 - Step 4: Simplify right side
236,786.14x = 42,271,949,887.53 - Step 5: Solve for x
x = 42,271,949,887.53/236,786.14 - Step 6: Final answer
x = 178,523.75
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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.