Finding the Fourth Proportional to 216,816.30, 299,198.97 and 120,024.36
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Solution
The fourth proportional to 216,816.30, 299,198.97 and 120,024.36 is: 165,629.45
Step by Step Solution
- Step 1: Write the proportion equation
216,816.30 : 299,198.97 = 120,024.36 : x - Step 2: Convert to fraction form
216,816.30/299,198.97 = 120,024.36/x - Step 3: Cross multiply
216,816.30x = 299,198.97 × 120,024.36 - Step 4: Simplify right side
216,816.30x = 35,911,164,886.91 - Step 5: Solve for x
x = 35,911,164,886.91/216,816.30 - Step 6: Final answer
x = 165,629.45
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1.5x scale
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.