Finding the Fourth Proportional to 261,564.56, 392,074.68 and 121,207.76
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Solution
The fourth proportional to 261,564.56, 392,074.68 and 121,207.76 is: 181,685.52
Step by Step Solution
- Step 1: Write the proportion equation
261,564.56 : 392,074.68 = 121,207.76 : x - Step 2: Convert to fraction form
261,564.56/392,074.68 = 121,207.76/x - Step 3: Cross multiply
261,564.56x = 392,074.68 × 121,207.76 - Step 4: Simplify right side
261,564.56x = 47,522,493,715.52 - Step 5: Solve for x
x = 47,522,493,715.52/261,564.56 - Step 6: Final answer
x = 181,685.52
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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.