Finding the Fourth Proportional to 286,038.18, 394,735.41 and 158,725.62
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Solution
The fourth proportional to 286,038.18, 394,735.41 and 158,725.62 is: 219,042.87
Step by Step Solution
- Step 1: Write the proportion equation
286,038.18 : 394,735.41 = 158,725.62 : x - Step 2: Convert to fraction form
286,038.18/394,735.41 = 158,725.62/x - Step 3: Cross multiply
286,038.18x = 394,735.41 × 158,725.62 - Step 4: Simplify right side
286,038.18x = 62,654,622,688.20 - Step 5: Solve for x
x = 62,654,622,688.20/286,038.18 - Step 6: Final answer
x = 219,042.87
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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.