Finding the Fourth Proportional to 279,744.49, 419,208.49 and 139,309.93
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Solution
The fourth proportional to 279,744.49, 419,208.49 and 139,309.93 is: 208,761.59
Step by Step Solution
- Step 1: Write the proportion equation
279,744.49 : 419,208.49 = 139,309.93 : x - Step 2: Convert to fraction form
279,744.49/419,208.49 = 139,309.93/x - Step 3: Cross multiply
279,744.49x = 419,208.49 × 139,309.93 - Step 4: Simplify right side
279,744.49x = 58,399,905,397.31 - Step 5: Solve for x
x = 58,399,905,397.31/279,744.49 - Step 6: Final answer
x = 208,761.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.