Finding the Fourth Proportional to 247,003.91, 340,860.94 and 139,571.63
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Solution
The fourth proportional to 247,003.91, 340,860.94 and 139,571.63 is: 192,606.33
Step by Step Solution
- Step 1: Write the proportion equation
247,003.91 : 340,860.94 = 139,571.63 : x - Step 2: Convert to fraction form
247,003.91/340,860.94 = 139,571.63/x - Step 3: Cross multiply
247,003.91x = 340,860.94 × 139,571.63 - Step 4: Simplify right side
247,003.91x = 47,574,516,999.13 - Step 5: Solve for x
x = 47,574,516,999.13/247,003.91 - Step 6: Final answer
x = 192,606.33
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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.