Finding the Fourth Proportional to 238,302.28, 328,856.97 and 130,879.09
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Solution
The fourth proportional to 238,302.28, 328,856.97 and 130,879.09 is: 180,613.05
Step by Step Solution
- Step 1: Write the proportion equation
238,302.28 : 328,856.97 = 130,879.09 : x - Step 2: Convert to fraction form
238,302.28/328,856.97 = 130,879.09/x - Step 3: Cross multiply
238,302.28x = 328,856.97 × 130,879.09 - Step 4: Simplify right side
238,302.28x = 43,040,500,973.76 - Step 5: Solve for x
x = 43,040,500,973.76/238,302.28 - Step 6: Final answer
x = 180,613.05
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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.