Finding the Fourth Proportional to 218,699.40, 328,062.06 and 68,944.44
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Solution
The fourth proportional to 218,699.40, 328,062.06 and 68,944.44 is: 103,420.75
Step by Step Solution
- Step 1: Write the proportion equation
218,699.40 : 328,062.06 = 68,944.44 : x - Step 2: Convert to fraction form
218,699.40/328,062.06 = 68,944.44/x - Step 3: Cross multiply
218,699.40x = 328,062.06 × 68,944.44 - Step 4: Simplify right side
218,699.40x = 22,618,055,011.95 - Step 5: Solve for x
x = 22,618,055,011.95/218,699.40 - Step 6: Final answer
x = 103,420.75
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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.