Finding the Fourth Proportional to 236,020.13, 325,711.52 and 128,590.14
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Solution
The fourth proportional to 236,020.13, 325,711.52 and 128,590.14 is: 177,456.43
Step by Step Solution
- Step 1: Write the proportion equation
236,020.13 : 325,711.52 = 128,590.14 : x - Step 2: Convert to fraction form
236,020.13/325,711.52 = 128,590.14/x - Step 3: Cross multiply
236,020.13x = 325,711.52 × 128,590.14 - Step 4: Simplify right side
236,020.13x = 41,883,289,908.29 - Step 5: Solve for x
x = 41,883,289,908.29/236,020.13 - Step 6: Final answer
x = 177,456.43
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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.