Finding the Fourth Proportional to 278,043.71, 383,696.26 and 157,180.97
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Solution
The fourth proportional to 278,043.71, 383,696.26 and 157,180.97 is: 216,907.45
Step by Step Solution
- Step 1: Write the proportion equation
278,043.71 : 383,696.26 = 157,180.97 : x - Step 2: Convert to fraction form
278,043.71/383,696.26 = 157,180.97/x - Step 3: Cross multiply
278,043.71x = 383,696.26 × 157,180.97 - Step 4: Simplify right side
278,043.71x = 60,309,750,898.46 - Step 5: Solve for x
x = 60,309,750,898.46/278,043.71 - Step 6: Final answer
x = 216,907.45
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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.