Finding the Fourth Proportional to 330,788.13, 456,507.62 and 194,912.79
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Solution
The fourth proportional to 330,788.13, 456,507.62 and 194,912.79 is: 268,991.44
Step by Step Solution
- Step 1: Write the proportion equation
330,788.13 : 456,507.62 = 194,912.79 : x - Step 2: Convert to fraction form
330,788.13/456,507.62 = 194,912.79/x - Step 3: Cross multiply
330,788.13x = 456,507.62 × 194,912.79 - Step 4: Simplify right side
330,788.13x = 88,979,173,870.46 - Step 5: Solve for x
x = 88,979,173,870.46/330,788.13 - Step 6: Final answer
x = 268,991.44
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1.5x scale
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.