Finding the Fourth Proportional to 216,536.26, 298,820.46 and 121,043.02
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Solution
The fourth proportional to 216,536.26, 298,820.46 and 121,043.02 is: 167,039.60
Step by Step Solution
- Step 1: Write the proportion equation
216,536.26 : 298,820.46 = 121,043.02 : x - Step 2: Convert to fraction form
216,536.26/298,820.46 = 121,043.02/x - Step 3: Cross multiply
216,536.26x = 298,820.46 × 121,043.02 - Step 4: Simplify right side
216,536.26x = 36,170,130,916.19 - Step 5: Solve for x
x = 36,170,130,916.19/216,536.26 - Step 6: Final answer
x = 167,039.60
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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.