Finding the Fourth Proportional to 313,534.96, 470,585.44 and 212,087.68
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Solution
The fourth proportional to 313,534.96, 470,585.44 and 212,087.68 is: 318,322.95
Step by Step Solution
- Step 1: Write the proportion equation
313,534.96 : 470,585.44 = 212,087.68 : x - Step 2: Convert to fraction form
313,534.96/470,585.44 = 212,087.68/x - Step 3: Cross multiply
313,534.96x = 470,585.44 × 212,087.68 - Step 4: Simplify right side
313,534.96x = 99,805,374,211.38 - Step 5: Solve for x
x = 99,805,374,211.38/313,534.96 - Step 6: Final answer
x = 318,322.95
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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.