Finding the Fourth Proportional to 286,182.74, 394,912.42 and 158,848.31
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Solution
The fourth proportional to 286,182.74, 394,912.42 and 158,848.31 is: 219,199.70
Step by Step Solution
- Step 1: Write the proportion equation
286,182.74 : 394,912.42 = 158,848.31 : x - Step 2: Convert to fraction form
286,182.74/394,912.42 = 158,848.31/x - Step 3: Cross multiply
286,182.74x = 394,912.42 × 158,848.31 - Step 4: Simplify right side
286,182.74x = 62,731,171,105.17 - Step 5: Solve for x
x = 62,731,171,105.17/286,182.74 - Step 6: Final answer
x = 219,199.70
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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.