Finding the Fourth Proportional to 286,871.28, 395,876.74 and 159,544.14
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Solution
The fourth proportional to 286,871.28, 395,876.74 and 159,544.14 is: 220,167.78
Step by Step Solution
- Step 1: Write the proportion equation
286,871.28 : 395,876.74 = 159,544.14 : x - Step 2: Convert to fraction form
286,871.28/395,876.74 = 159,544.14/x - Step 3: Cross multiply
286,871.28x = 395,876.74 × 159,544.14 - Step 4: Simplify right side
286,871.28x = 63,159,814,029.30 - Step 5: Solve for x
x = 63,159,814,029.30/286,871.28 - Step 6: Final answer
x = 220,167.78
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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.