Finding the Fourth Proportional to 261,556.16, 391,968.88 and 141,353.98
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Solution
The fourth proportional to 261,556.16, 391,968.88 and 141,353.98 is: 211,833.52
Step by Step Solution
- Step 1: Write the proportion equation
261,556.16 : 391,968.88 = 141,353.98 : x - Step 2: Convert to fraction form
261,556.16/391,968.88 = 141,353.98/x - Step 3: Cross multiply
261,556.16x = 391,968.88 × 141,353.98 - Step 4: Simplify right side
261,556.16x = 55,406,359,890.84 - Step 5: Solve for x
x = 55,406,359,890.84/261,556.16 - Step 6: Final answer
x = 211,833.52
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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.