Finding the Fourth Proportional to 419,852.76, 579,374.82 and 238,539.48
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Solution
The fourth proportional to 419,852.76, 579,374.82 and 238,539.48 is: 329,171.99
Step by Step Solution
- Step 1: Write the proportion equation
419,852.76 : 579,374.82 = 238,539.48 : x - Step 2: Convert to fraction form
419,852.76/579,374.82 = 238,539.48/x - Step 3: Cross multiply
419,852.76x = 579,374.82 × 238,539.48 - Step 4: Simplify right side
419,852.76x = 138,203,768,287.89 - Step 5: Solve for x
x = 138,203,768,287.89/419,852.76 - Step 6: Final answer
x = 329,171.99
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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.