Finding the Fourth Proportional to 426,302.80, 639,745.80 and 236,762.80
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Solution
The fourth proportional to 426,302.80, 639,745.80 and 236,762.80 is: 355,306.15
Step by Step Solution
- Step 1: Write the proportion equation
426,302.80 : 639,745.80 = 236,762.80 : x - Step 2: Convert to fraction form
426,302.80/639,745.80 = 236,762.80/x - Step 3: Cross multiply
426,302.80x = 639,745.80 × 236,762.80 - Step 4: Simplify right side
426,302.80x = 151,468,006,896.24 - Step 5: Solve for x
x = 151,468,006,896.24/426,302.80 - Step 6: Final answer
x = 355,306.15
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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.