Finding the Fourth Proportional to 286,876.68, 395,879.14 and 159,549.54
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Solution
The fourth proportional to 286,876.68, 395,879.14 and 159,549.54 is: 220,172.43
Step by Step Solution
- Step 1: Write the proportion equation
286,876.68 : 395,879.14 = 159,549.54 : x - Step 2: Convert to fraction form
286,876.68/395,879.14 = 159,549.54/x - Step 3: Cross multiply
286,876.68x = 395,879.14 × 159,549.54 - Step 4: Simplify right side
286,876.68x = 63,162,334,682.60 - Step 5: Solve for x
x = 63,162,334,682.60/286,876.68 - Step 6: Final answer
x = 220,172.43
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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.