Finding the Fourth Proportional to 218,843.28, 328,309.08 and 69,106.96
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Solution
The fourth proportional to 218,843.28, 328,309.08 and 69,106.96 is: 103,674.38
Step by Step Solution
- Step 1: Write the proportion equation
218,843.28 : 328,309.08 = 69,106.96 : x - Step 2: Convert to fraction form
218,843.28/328,309.08 = 69,106.96/x - Step 3: Cross multiply
218,843.28x = 328,309.08 × 69,106.96 - Step 4: Simplify right side
218,843.28x = 22,688,442,459.20 - Step 5: Solve for x
x = 22,688,442,459.20/218,843.28 - Step 6: Final answer
x = 103,674.38
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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.