Finding the Fourth Proportional to 235,565.19, 325,076.63 and 128,135.97
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Solution
The fourth proportional to 235,565.19, 325,076.63 and 128,135.97 is: 176,825.82
Step by Step Solution
- Step 1: Write the proportion equation
235,565.19 : 325,076.63 = 128,135.97 : x - Step 2: Convert to fraction form
235,565.19/325,076.63 = 128,135.97/x - Step 3: Cross multiply
235,565.19x = 325,076.63 × 128,135.97 - Step 4: Simplify right side
235,565.19x = 41,654,008,668.70 - Step 5: Solve for x
x = 41,654,008,668.70/235,565.19 - Step 6: Final answer
x = 176,825.82
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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.