Finding the Fourth Proportional to 245,415.20, 368,122.80 and 245,415.20
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Solution
The fourth proportional to 245,415.20, 368,122.80 and 245,415.20 is: 368,122.80
Step by Step Solution
- Step 1: Write the proportion equation
245,415.20 : 368,122.80 = 245,415.20 : x - Step 2: Convert to fraction form
245,415.20/368,122.80 = 245,415.20/x - Step 3: Cross multiply
245,415.20x = 368,122.80 × 245,415.20 - Step 4: Simplify right side
245,415.20x = 90,342,930,586.56 - Step 5: Solve for x
x = 90,342,930,586.56/245,415.20 - Step 6: Final answer
x = 368,122.80
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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.