Finding the Fourth Proportional to 193,292.67, 289,822.43 and 86,657.31
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Solution
The fourth proportional to 193,292.67, 289,822.43 and 86,657.31 is: 129,933.70
Step by Step Solution
- Step 1: Write the proportion equation
193,292.67 : 289,822.43 = 86,657.31 : x - Step 2: Convert to fraction form
193,292.67/289,822.43 = 86,657.31/x - Step 3: Cross multiply
193,292.67x = 289,822.43 × 86,657.31 - Step 4: Simplify right side
193,292.67x = 25,115,231,291.27 - Step 5: Solve for x
x = 25,115,231,291.27/193,292.67 - Step 6: Final answer
x = 129,933.70
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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.