Finding the Fourth Proportional to 408,291.10, 612,561.08 and 208,751.58
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Solution
The fourth proportional to 408,291.10, 612,561.08 and 208,751.58 is: 313,190.99
Step by Step Solution
- Step 1: Write the proportion equation
408,291.10 : 612,561.08 = 208,751.58 : x - Step 2: Convert to fraction form
408,291.10/612,561.08 = 208,751.58/x - Step 3: Cross multiply
408,291.10x = 612,561.08 × 208,751.58 - Step 4: Simplify right side
408,291.10x = 127,873,093,818.39 - Step 5: Solve for x
x = 127,873,093,818.39/408,291.10 - Step 6: Final answer
x = 313,190.99
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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.