Finding the Fourth Proportional to 218,148.21, 326,886.98 and 129,224.79
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Solution
The fourth proportional to 218,148.21, 326,886.98 and 129,224.79 is: 193,638.54
Step by Step Solution
- Step 1: Write the proportion equation
218,148.21 : 326,886.98 = 129,224.79 : x - Step 2: Convert to fraction form
218,148.21/326,886.98 = 129,224.79/x - Step 3: Cross multiply
218,148.21x = 326,886.98 × 129,224.79 - Step 4: Simplify right side
218,148.21x = 42,241,900,698.11 - Step 5: Solve for x
x = 42,241,900,698.11/218,148.21 - Step 6: Final answer
x = 193,638.54
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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.