Finding the Fourth Proportional to 261,412.52, 392,118.71 and 74,424.02
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Solution
The fourth proportional to 261,412.52, 392,118.71 and 74,424.02 is: 111,636.00
Step by Step Solution
- Step 1: Write the proportion equation
261,412.52 : 392,118.71 = 74,424.02 : x - Step 2: Convert to fraction form
261,412.52/392,118.71 = 74,424.02/x - Step 3: Cross multiply
261,412.52x = 392,118.71 × 74,424.02 - Step 4: Simplify right side
261,412.52x = 29,183,048,382.70 - Step 5: Solve for x
x = 29,183,048,382.70/261,412.52 - Step 6: Final answer
x = 111,636.00
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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.