Finding the Fourth Proportional to 218,959.20, 328,438.80 and 194,464.80
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Solution
The fourth proportional to 218,959.20, 328,438.80 and 194,464.80 is: 291,697.20
Step by Step Solution
- Step 1: Write the proportion equation
218,959.20 : 328,438.80 = 194,464.80 : x - Step 2: Convert to fraction form
218,959.20/328,438.80 = 194,464.80/x - Step 3: Cross multiply
218,959.20x = 328,438.80 × 194,464.80 - Step 4: Simplify right side
218,959.20x = 63,869,785,554.24 - Step 5: Solve for x
x = 63,869,785,554.24/218,959.20 - Step 6: Final answer
x = 291,697.20
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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.