Finding the Fourth Proportional to 402,345.14, 555,227.36 and 218,578.96
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Solution
The fourth proportional to 402,345.14, 555,227.36 and 218,578.96 is: 301,634.11
Step by Step Solution
- Step 1: Write the proportion equation
402,345.14 : 555,227.36 = 218,578.96 : x - Step 2: Convert to fraction form
402,345.14/555,227.36 = 218,578.96/x - Step 3: Cross multiply
402,345.14x = 555,227.36 × 218,578.96 - Step 4: Simplify right side
402,345.14x = 121,361,016,210.00 - Step 5: Solve for x
x = 121,361,016,210.00/402,345.14 - Step 6: Final answer
x = 301,634.11
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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.