Finding the Fourth Proportional to 190,261.23, 262,736.99 and 142,431.54
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Solution
The fourth proportional to 190,261.23, 262,736.99 and 142,431.54 is: 196,687.65
Step by Step Solution
- Step 1: Write the proportion equation
190,261.23 : 262,736.99 = 142,431.54 : x - Step 2: Convert to fraction form
190,261.23/262,736.99 = 142,431.54/x - Step 3: Cross multiply
190,261.23x = 262,736.99 × 142,431.54 - Step 4: Simplify right side
190,261.23x = 37,422,032,937.36 - Step 5: Solve for x
x = 37,422,032,937.36/190,261.23 - Step 6: Final answer
x = 196,687.65
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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.