Finding the Fourth Proportional to 207,257.63, 310,886.52 and 74,129.93
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Solution
The fourth proportional to 207,257.63, 310,886.52 and 74,129.93 is: 111,194.92
Step by Step Solution
- Step 1: Write the proportion equation
207,257.63 : 310,886.52 = 74,129.93 : x - Step 2: Convert to fraction form
207,257.63/310,886.52 = 74,129.93/x - Step 3: Cross multiply
207,257.63x = 310,886.52 × 74,129.93 - Step 4: Simplify right side
207,257.63x = 23,045,994,411.11 - Step 5: Solve for x
x = 23,045,994,411.11/207,257.63 - Step 6: Final answer
x = 111,194.92
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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.