Finding the Fourth Proportional to 235,777.88, 325,374.99 and 128,347.88
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Solution
The fourth proportional to 235,777.88, 325,374.99 and 128,347.88 is: 177,120.90
Step by Step Solution
- Step 1: Write the proportion equation
235,777.88 : 325,374.99 = 128,347.88 : x - Step 2: Convert to fraction form
235,777.88/325,374.99 = 128,347.88/x - Step 3: Cross multiply
235,777.88x = 325,374.99 × 128,347.88 - Step 4: Simplify right side
235,777.88x = 41,761,190,171.52 - Step 5: Solve for x
x = 41,761,190,171.52/235,777.88 - Step 6: Final answer
x = 177,120.90
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1.5x scale
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.