Finding the Fourth Proportional to 212,937.20, 319,405.80 and 202,569.20
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Solution
The fourth proportional to 212,937.20, 319,405.80 and 202,569.20 is: 303,853.80
Step by Step Solution
- Step 1: Write the proportion equation
212,937.20 : 319,405.80 = 202,569.20 : x - Step 2: Convert to fraction form
212,937.20/319,405.80 = 202,569.20/x - Step 3: Cross multiply
212,937.20x = 319,405.80 × 202,569.20 - Step 4: Simplify right side
212,937.20x = 64,701,777,381.36 - Step 5: Solve for x
x = 64,701,777,381.36/212,937.20 - Step 6: Final answer
x = 303,853.80
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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.