Finding the Fourth Proportional to 257,282.36, 385,960.86 and 79,803.62
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Solution
The fourth proportional to 257,282.36, 385,960.86 and 79,803.62 is: 119,717.01
Step by Step Solution
- Step 1: Write the proportion equation
257,282.36 : 385,960.86 = 79,803.62 : x - Step 2: Convert to fraction form
257,282.36/385,960.86 = 79,803.62/x - Step 3: Cross multiply
257,282.36x = 385,960.86 × 79,803.62 - Step 4: Simplify right side
257,282.36x = 30,801,073,806.31 - Step 5: Solve for x
x = 30,801,073,806.31/257,282.36 - Step 6: Final answer
x = 119,717.01
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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.