Finding the Fourth Proportional to 212,344.74, 318,713.94 and 107,237.52
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Solution
The fourth proportional to 212,344.74, 318,713.94 and 107,237.52 is: 160,955.68
Step by Step Solution
- Step 1: Write the proportion equation
212,344.74 : 318,713.94 = 107,237.52 : x - Step 2: Convert to fraction form
212,344.74/318,713.94 = 107,237.52/x - Step 3: Cross multiply
212,344.74x = 318,713.94 × 107,237.52 - Step 4: Simplify right side
212,344.74x = 34,178,092,515.03 - Step 5: Solve for x
x = 34,178,092,515.03/212,344.74 - Step 6: Final answer
x = 160,955.68
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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.