Finding the Fourth Proportional to 324,689.85, 448,209.95 and 197,406.09
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Solution
The fourth proportional to 324,689.85, 448,209.95 and 197,406.09 is: 272,504.28
Step by Step Solution
- Step 1: Write the proportion equation
324,689.85 : 448,209.95 = 197,406.09 : x - Step 2: Convert to fraction form
324,689.85/448,209.95 = 197,406.09/x - Step 3: Cross multiply
324,689.85x = 448,209.95 × 197,406.09 - Step 4: Simplify right side
324,689.85x = 88,479,372,741.57 - Step 5: Solve for x
x = 88,479,372,741.57/324,689.85 - Step 6: Final answer
x = 272,504.28
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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.