Finding the Fourth Proportional to 393,220.44, 542,637.63 and 218,783.88
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Solution
The fourth proportional to 393,220.44, 542,637.63 and 218,783.88 is: 301,918.09
Step by Step Solution
- Step 1: Write the proportion equation
393,220.44 : 542,637.63 = 218,783.88 : x - Step 2: Convert to fraction form
393,220.44/542,637.63 = 218,783.88/x - Step 3: Cross multiply
393,220.44x = 542,637.63 × 218,783.88 - Step 4: Simplify right side
393,220.44x = 118,720,366,125.40 - Step 5: Solve for x
x = 118,720,366,125.40/393,220.44 - Step 6: Final answer
x = 301,918.09
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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.