Finding the Fourth Proportional to 264,643.20, 396,964.80 and 230,428.80
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Solution
The fourth proportional to 264,643.20, 396,964.80 and 230,428.80 is: 345,643.20
Step by Step Solution
- Step 1: Write the proportion equation
264,643.20 : 396,964.80 = 230,428.80 : x - Step 2: Convert to fraction form
264,643.20/396,964.80 = 230,428.80/x - Step 3: Cross multiply
264,643.20x = 396,964.80 × 230,428.80 - Step 4: Simplify right side
264,643.20x = 91,472,122,506.24 - Step 5: Solve for x
x = 91,472,122,506.24/264,643.20 - Step 6: Final answer
x = 345,643.20
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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.