Finding the Fourth Proportional to 313,497.63, 432,629.27 and 170,258.70
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Solution
The fourth proportional to 313,497.63, 432,629.27 and 170,258.70 is: 234,958.39
Step by Step Solution
- Step 1: Write the proportion equation
313,497.63 : 432,629.27 = 170,258.70 : x - Step 2: Convert to fraction form
313,497.63/432,629.27 = 170,258.70/x - Step 3: Cross multiply
313,497.63x = 432,629.27 × 170,258.70 - Step 4: Simplify right side
313,497.63x = 73,658,897,517.80 - Step 5: Solve for x
x = 73,658,897,517.80/313,497.63 - Step 6: Final answer
x = 234,958.39
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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.