Finding the Fourth Proportional to 207,929.75, 286,943.36 and 112,436.45
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Solution
The fourth proportional to 207,929.75, 286,943.36 and 112,436.45 is: 155,162.46
Step by Step Solution
- Step 1: Write the proportion equation
207,929.75 : 286,943.36 = 112,436.45 : x - Step 2: Convert to fraction form
207,929.75/286,943.36 = 112,436.45/x - Step 3: Cross multiply
207,929.75x = 286,943.36 × 112,436.45 - Step 4: Simplify right side
207,929.75x = 32,262,890,752.57 - Step 5: Solve for x
x = 32,262,890,752.57/207,929.75 - Step 6: Final answer
x = 155,162.46
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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.