Finding the Fourth Proportional to 279,679.37, 419,357.05 and 191,039.99
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Solution
The fourth proportional to 279,679.37, 419,357.05 and 191,039.99 is: 286,449.32
Step by Step Solution
- Step 1: Write the proportion equation
279,679.37 : 419,357.05 = 191,039.99 : x - Step 2: Convert to fraction form
279,679.37/419,357.05 = 191,039.99/x - Step 3: Cross multiply
279,679.37x = 419,357.05 × 191,039.99 - Step 4: Simplify right side
279,679.37x = 80,113,964,064.04 - Step 5: Solve for x
x = 80,113,964,064.04/279,679.37 - Step 6: Final answer
x = 286,449.32
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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.