Finding the Fourth Proportional to 264,613.80, 396,920.70 and 212,125.80
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Solution
The fourth proportional to 264,613.80, 396,920.70 and 212,125.80 is: 318,188.70
Step by Step Solution
- Step 1: Write the proportion equation
264,613.80 : 396,920.70 = 212,125.80 : x - Step 2: Convert to fraction form
264,613.80/396,920.70 = 212,125.80/x - Step 3: Cross multiply
264,613.80x = 396,920.70 × 212,125.80 - Step 4: Simplify right side
264,613.80x = 84,197,121,024.06 - Step 5: Solve for x
x = 84,197,121,024.06/264,613.80 - Step 6: Final answer
x = 318,188.70
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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.