Finding the Fourth Proportional to 236,828.39, 326,813.57 and 129,402.14
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Solution
The fourth proportional to 236,828.39, 326,813.57 and 129,402.14 is: 178,569.70
Step by Step Solution
- Step 1: Write the proportion equation
236,828.39 : 326,813.57 = 129,402.14 : x - Step 2: Convert to fraction form
236,828.39/326,813.57 = 129,402.14/x - Step 3: Cross multiply
236,828.39x = 326,813.57 × 129,402.14 - Step 4: Simplify right side
236,828.39x = 42,290,373,057.96 - Step 5: Solve for x
x = 42,290,373,057.96/236,828.39 - Step 6: Final answer
x = 178,569.70
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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.