Finding the Fourth Proportional to 298,556.16, 447,827.28 and 121,015.68
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Solution
The fourth proportional to 298,556.16, 447,827.28 and 121,015.68 is: 181,520.70
Step by Step Solution
- Step 1: Write the proportion equation
298,556.16 : 447,827.28 = 121,015.68 : x - Step 2: Convert to fraction form
298,556.16/447,827.28 = 121,015.68/x - Step 3: Cross multiply
298,556.16x = 447,827.28 × 121,015.68 - Step 4: Simplify right side
298,556.16x = 54,194,122,811.75 - Step 5: Solve for x
x = 54,194,122,811.75/298,556.16 - Step 6: Final answer
x = 181,520.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.