Finding the Fourth Proportional to 215,291.99, 322,728.50 and 102,943.07
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Solution
The fourth proportional to 215,291.99, 322,728.50 and 102,943.07 is: 154,314.43
Step by Step Solution
- Step 1: Write the proportion equation
215,291.99 : 322,728.50 = 102,943.07 : x - Step 2: Convert to fraction form
215,291.99/322,728.50 = 102,943.07/x - Step 3: Cross multiply
215,291.99x = 322,728.50 × 102,943.07 - Step 4: Simplify right side
215,291.99x = 33,222,660,438.14 - Step 5: Solve for x
x = 33,222,660,438.14/215,291.99 - Step 6: Final answer
x = 154,314.43
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.