Finding the Fourth Proportional to 261,985.20, 392,394.60 and 202,498.80
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Solution
The fourth proportional to 261,985.20, 392,394.60 and 202,498.80 is: 303,297.42
Step by Step Solution
- Step 1: Write the proportion equation
261,985.20 : 392,394.60 = 202,498.80 : x - Step 2: Convert to fraction form
261,985.20/392,394.60 = 202,498.80/x - Step 3: Cross multiply
261,985.20x = 392,394.60 × 202,498.80 - Step 4: Simplify right side
261,985.20x = 79,459,435,626.48 - Step 5: Solve for x
x = 79,459,435,626.48/261,985.20 - Step 6: Final answer
x = 303,297.42
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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.