Finding the Fourth Proportional to 221,290.44, 331,639.17 and 207,118.68
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Solution
The fourth proportional to 221,290.44, 331,639.17 and 207,118.68 is: 310,400.52
Step by Step Solution
- Step 1: Write the proportion equation
221,290.44 : 331,639.17 = 207,118.68 : x - Step 2: Convert to fraction form
221,290.44/331,639.17 = 207,118.68/x - Step 3: Cross multiply
221,290.44x = 331,639.17 × 207,118.68 - Step 4: Simplify right side
221,290.44x = 68,688,667,126.70 - Step 5: Solve for x
x = 68,688,667,126.70/221,290.44 - Step 6: Final answer
x = 310,400.52
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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.