Finding the Fourth Proportional to 279,439.44, 385,626.47 and 152,115.99
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Solution
The fourth proportional to 279,439.44, 385,626.47 and 152,115.99 is: 209,920.09
Step by Step Solution
- Step 1: Write the proportion equation
279,439.44 : 385,626.47 = 152,115.99 : x - Step 2: Convert to fraction form
279,439.44/385,626.47 = 152,115.99/x - Step 3: Cross multiply
279,439.44x = 385,626.47 × 152,115.99 - Step 4: Simplify right side
279,439.44x = 58,659,952,254.26 - Step 5: Solve for x
x = 58,659,952,254.26/279,439.44 - Step 6: Final answer
x = 209,920.09
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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.