Finding the Fourth Proportional to 351,531.21, 485,112.92 and 190,386.26
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Solution
The fourth proportional to 351,531.21, 485,112.92 and 190,386.26 is: 262,732.96
Step by Step Solution
- Step 1: Write the proportion equation
351,531.21 : 485,112.92 = 190,386.26 : x - Step 2: Convert to fraction form
351,531.21/485,112.92 = 190,386.26/x - Step 3: Cross multiply
351,531.21x = 485,112.92 × 190,386.26 - Step 4: Simplify right side
351,531.21x = 92,358,835,686.92 - Step 5: Solve for x
x = 92,358,835,686.92/351,531.21 - Step 6: Final answer
x = 262,732.96
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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.