Finding the Fourth Proportional to 392,361.14, 541,420.95 and 220,239.68
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Solution
The fourth proportional to 392,361.14, 541,420.95 and 220,239.68 is: 303,909.75
Step by Step Solution
- Step 1: Write the proportion equation
392,361.14 : 541,420.95 = 220,239.68 : x - Step 2: Convert to fraction form
392,361.14/541,420.95 = 220,239.68/x - Step 3: Cross multiply
392,361.14x = 541,420.95 × 220,239.68 - Step 4: Simplify right side
392,361.14x = 119,242,374,066.19 - Step 5: Solve for x
x = 119,242,374,066.19/392,361.14 - Step 6: Final answer
x = 303,909.75
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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.