Finding the Fourth Proportional to 261,431.96, 392,106.93 and 71,906.54
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Solution
The fourth proportional to 261,431.96, 392,106.93 and 71,906.54 is: 107,848.52
Step by Step Solution
- Step 1: Write the proportion equation
261,431.96 : 392,106.93 = 71,906.54 : x - Step 2: Convert to fraction form
261,431.96/392,106.93 = 71,906.54/x - Step 3: Cross multiply
261,431.96x = 392,106.93 × 71,906.54 - Step 4: Simplify right side
261,431.96x = 28,195,050,416.14 - Step 5: Solve for x
x = 28,195,050,416.14/261,431.96 - Step 6: Final answer
x = 107,848.52
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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.