Finding the Fourth Proportional to 419,768.21, 579,293.64 and 238,476.84
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Solution
The fourth proportional to 419,768.21, 579,293.64 and 238,476.84 is: 329,105.72
Step by Step Solution
- Step 1: Write the proportion equation
419,768.21 : 579,293.64 = 238,476.84 : x - Step 2: Convert to fraction form
419,768.21/579,293.64 = 238,476.84/x - Step 3: Cross multiply
419,768.21x = 579,293.64 × 238,476.84 - Step 4: Simplify right side
419,768.21x = 138,148,116,699.30 - Step 5: Solve for x
x = 138,148,116,699.30/419,768.21 - Step 6: Final answer
x = 329,105.72
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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.