Finding the Fourth Proportional to 330,438.58, 456,027.79 and 187,199.80
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Solution
The fourth proportional to 330,438.58, 456,027.79 and 187,199.80 is: 258,348.50
Step by Step Solution
- Step 1: Write the proportion equation
330,438.58 : 456,027.79 = 187,199.80 : x - Step 2: Convert to fraction form
330,438.58/456,027.79 = 187,199.80/x - Step 3: Cross multiply
330,438.58x = 456,027.79 × 187,199.80 - Step 4: Simplify right side
330,438.58x = 85,368,311,082.44 - Step 5: Solve for x
x = 85,368,311,082.44/330,438.58 - Step 6: Final answer
x = 258,348.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.