Finding the Fourth Proportional to 278,584.49, 384,425.58 and 157,698.06
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Solution
The fourth proportional to 278,584.49, 384,425.58 and 157,698.06 is: 217,611.43
Step by Step Solution
- Step 1: Write the proportion equation
278,584.49 : 384,425.58 = 157,698.06 : x - Step 2: Convert to fraction form
278,584.49/384,425.58 = 157,698.06/x - Step 3: Cross multiply
278,584.49x = 384,425.58 × 157,698.06 - Step 4: Simplify right side
278,584.49x = 60,623,168,180.37 - Step 5: Solve for x
x = 60,623,168,180.37/278,584.49 - Step 6: Final answer
x = 217,611.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.