Finding the Fourth Proportional to 218,953.20, 328,427.84 and 69,193.52
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Solution
The fourth proportional to 218,953.20, 328,427.84 and 69,193.52 is: 103,789.66
Step by Step Solution
- Step 1: Write the proportion equation
218,953.20 : 328,427.84 = 69,193.52 : x - Step 2: Convert to fraction form
218,953.20/328,427.84 = 69,193.52/x - Step 3: Cross multiply
218,953.20x = 328,427.84 × 69,193.52 - Step 4: Simplify right side
218,953.20x = 22,725,078,315.60 - Step 5: Solve for x
x = 22,725,078,315.60/218,953.20 - Step 6: Final answer
x = 103,789.66
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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.