Finding the Fourth Proportional to 419,725.94, 579,203.39 and 238,437.14
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Solution
The fourth proportional to 419,725.94, 579,203.39 and 238,437.14 is: 329,032.79
Step by Step Solution
- Step 1: Write the proportion equation
419,725.94 : 579,203.39 = 238,437.14 : x - Step 2: Convert to fraction form
419,725.94/579,203.39 = 238,437.14/x - Step 3: Cross multiply
419,725.94x = 579,203.39 × 238,437.14 - Step 4: Simplify right side
419,725.94x = 138,103,597,489.98 - Step 5: Solve for x
x = 138,103,597,489.98/419,725.94 - Step 6: Final answer
x = 329,032.79
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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.