Finding the Fourth Proportional to 216,452.18, 298,717.95 and 120,959.42
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Solution
The fourth proportional to 216,452.18, 298,717.95 and 120,959.42 is: 166,931.79
Step by Step Solution
- Step 1: Write the proportion equation
216,452.18 : 298,717.95 = 120,959.42 : x - Step 2: Convert to fraction form
216,452.18/298,717.95 = 120,959.42/x - Step 3: Cross multiply
216,452.18x = 298,717.95 × 120,959.42 - Step 4: Simplify right side
216,452.18x = 36,132,749,975.59 - Step 5: Solve for x
x = 36,132,749,975.59/216,452.18 - Step 6: Final answer
x = 166,931.79
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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.