Finding the Fourth Proportional to 286,166.31, 394,889.74 and 158,831.88
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Solution
The fourth proportional to 286,166.31, 394,889.74 and 158,831.88 is: 219,177.02
Step by Step Solution
- Step 1: Write the proportion equation
286,166.31 : 394,889.74 = 158,831.88 : x - Step 2: Convert to fraction form
286,166.31/394,889.74 = 158,831.88/x - Step 3: Cross multiply
286,166.31x = 394,889.74 × 158,831.88 - Step 4: Simplify right side
286,166.31x = 62,721,079,796.91 - Step 5: Solve for x
x = 62,721,079,796.91/286,166.31 - Step 6: Final answer
x = 219,177.02
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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.