Finding the Fourth Proportional to 236,564.92, 326,441.10 and 129,128.68
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Solution
The fourth proportional to 236,564.92, 326,441.10 and 129,128.68 is: 178,187.49
Step by Step Solution
- Step 1: Write the proportion equation
236,564.92 : 326,441.10 = 129,128.68 : x - Step 2: Convert to fraction form
236,564.92/326,441.10 = 129,128.68/x - Step 3: Cross multiply
236,564.92x = 326,441.10 × 129,128.68 - Step 4: Simplify right side
236,564.92x = 42,152,908,340.75 - Step 5: Solve for x
x = 42,152,908,340.75/236,564.92 - Step 6: Final answer
x = 178,187.49
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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.