Finding the Fourth Proportional to 261,610.56, 392,143.68 and 121,253.76
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Solution
The fourth proportional to 261,610.56, 392,143.68 and 121,253.76 is: 181,754.50
Step by Step Solution
- Step 1: Write the proportion equation
261,610.56 : 392,143.68 = 121,253.76 : x - Step 2: Convert to fraction form
261,610.56/392,143.68 = 121,253.76/x - Step 3: Cross multiply
261,610.56x = 392,143.68 × 121,253.76 - Step 4: Simplify right side
261,610.56x = 47,548,895,660.24 - Step 5: Solve for x
x = 47,548,895,660.24/261,610.56 - Step 6: Final answer
x = 181,754.50
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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.