Finding the Fourth Proportional to 278,430.14, 384,212.30 and 163,713.44
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Solution
The fourth proportional to 278,430.14, 384,212.30 and 163,713.44 is: 225,912.03
Step by Step Solution
- Step 1: Write the proportion equation
278,430.14 : 384,212.30 = 163,713.44 : x - Step 2: Convert to fraction form
278,430.14/384,212.30 = 163,713.44/x - Step 3: Cross multiply
278,430.14x = 384,212.30 × 163,713.44 - Step 4: Simplify right side
278,430.14x = 62,900,717,323.31 - Step 5: Solve for x
x = 62,900,717,323.31/278,430.14 - Step 6: Final answer
x = 225,912.03
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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.