Finding the Fourth Proportional to 431,590.98, 646,800.60 and 229,135.92
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Solution
The fourth proportional to 431,590.98, 646,800.60 and 229,135.92 is: 343,392.84
Step by Step Solution
- Step 1: Write the proportion equation
431,590.98 : 646,800.60 = 229,135.92 : x - Step 2: Convert to fraction form
431,590.98/646,800.60 = 229,135.92/x - Step 3: Cross multiply
431,590.98x = 646,800.60 × 229,135.92 - Step 4: Simplify right side
431,590.98x = 148,205,250,537.55 - Step 5: Solve for x
x = 148,205,250,537.55/431,590.98 - Step 6: Final answer
x = 343,392.84
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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.