Finding the Fourth Proportional to 261,564.47, 392,350.35 and 74,575.97
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Solution
The fourth proportional to 261,564.47, 392,350.35 and 74,575.97 is: 111,864.99
Step by Step Solution
- Step 1: Write the proportion equation
261,564.47 : 392,350.35 = 74,575.97 : x - Step 2: Convert to fraction form
261,564.47/392,350.35 = 74,575.97/x - Step 3: Cross multiply
261,564.47x = 392,350.35 × 74,575.97 - Step 4: Simplify right side
261,564.47x = 29,259,907,931.09 - Step 5: Solve for x
x = 29,259,907,931.09/261,564.47 - Step 6: Final answer
x = 111,864.99
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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.