Finding the Fourth Proportional to 261,489.12, 392,183.52 and 101,564.88
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Solution
The fourth proportional to 261,489.12, 392,183.52 and 101,564.88 is: 152,327.84
Step by Step Solution
- Step 1: Write the proportion equation
261,489.12 : 392,183.52 = 101,564.88 : x - Step 2: Convert to fraction form
261,489.12/392,183.52 = 101,564.88/x - Step 3: Cross multiply
261,489.12x = 392,183.52 × 101,564.88 - Step 4: Simplify right side
261,489.12x = 39,832,072,146.78 - Step 5: Solve for x
x = 39,832,072,146.78/261,489.12 - Step 6: Final answer
x = 152,327.84
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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.