Finding the Fourth Proportional to 218,977.20, 328,437.56 and 69,232.70
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Solution
The fourth proportional to 218,977.20, 328,437.56 and 69,232.70 is: 103,840.12
Step by Step Solution
- Step 1: Write the proportion equation
218,977.20 : 328,437.56 = 69,232.70 : x - Step 2: Convert to fraction form
218,977.20/328,437.56 = 69,232.70/x - Step 3: Cross multiply
218,977.20x = 328,437.56 × 69,232.70 - Step 4: Simplify right side
218,977.20x = 22,738,619,060.21 - Step 5: Solve for x
x = 22,738,619,060.21/218,977.20 - Step 6: Final answer
x = 103,840.12
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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.