Finding the Fourth Proportional to 215,536.40, 322,867.20 and 121,932.80
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Solution
The fourth proportional to 215,536.40, 322,867.20 and 121,932.80 is: 182,651.75
Step by Step Solution
- Step 1: Write the proportion equation
215,536.40 : 322,867.20 = 121,932.80 : x - Step 2: Convert to fraction form
215,536.40/322,867.20 = 121,932.80/x - Step 3: Cross multiply
215,536.40x = 322,867.20 × 121,932.80 - Step 4: Simplify right side
215,536.40x = 39,368,101,724.16 - Step 5: Solve for x
x = 39,368,101,724.16/215,536.40 - Step 6: Final answer
x = 182,651.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.