Finding the Fourth Proportional to 216,963.80, 299,375.50 and 121,474.52
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Solution
The fourth proportional to 216,963.80, 299,375.50 and 121,474.52 is: 167,615.50
Step by Step Solution
- Step 1: Write the proportion equation
216,963.80 : 299,375.50 = 121,474.52 : x - Step 2: Convert to fraction form
216,963.80/299,375.50 = 121,474.52/x - Step 3: Cross multiply
216,963.80x = 299,375.50 × 121,474.52 - Step 4: Simplify right side
216,963.80x = 36,366,495,162.26 - Step 5: Solve for x
x = 36,366,495,162.26/216,963.80 - Step 6: Final answer
x = 167,615.50
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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.