Finding the Fourth Proportional to 261,579.84, 392,325.84 and 74,546.88
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Solution
The fourth proportional to 261,579.84, 392,325.84 and 74,546.88 is: 111,807.80
Step by Step Solution
- Step 1: Write the proportion equation
261,579.84 : 392,325.84 = 74,546.88 : x - Step 2: Convert to fraction form
261,579.84/392,325.84 = 74,546.88/x - Step 3: Cross multiply
261,579.84x = 392,325.84 × 74,546.88 - Step 4: Simplify right side
261,579.84x = 29,246,667,315.38 - Step 5: Solve for x
x = 29,246,667,315.38/261,579.84 - Step 6: Final answer
x = 111,807.80
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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.