Finding the Fourth Proportional to 285,145.90, 393,519.61 and 164,284.99
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Solution
The fourth proportional to 285,145.90, 393,519.61 and 164,284.99 is: 226,723.81
Step by Step Solution
- Step 1: Write the proportion equation
285,145.90 : 393,519.61 = 164,284.99 : x - Step 2: Convert to fraction form
285,145.90/393,519.61 = 164,284.99/x - Step 3: Cross multiply
285,145.90x = 393,519.61 × 164,284.99 - Step 4: Simplify right side
285,145.90x = 64,649,364,782.94 - Step 5: Solve for x
x = 64,649,364,782.94/285,145.90 - Step 6: Final answer
x = 226,723.81
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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.