Finding the Fourth Proportional to 417,698.20, 576,424.18 and 226,711.68
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Solution
The fourth proportional to 417,698.20, 576,424.18 and 226,711.68 is: 312,862.48
Step by Step Solution
- Step 1: Write the proportion equation
417,698.20 : 576,424.18 = 226,711.68 : x - Step 2: Convert to fraction form
417,698.20/576,424.18 = 226,711.68/x - Step 3: Cross multiply
417,698.20x = 576,424.18 × 226,711.68 - Step 4: Simplify right side
417,698.20x = 130,682,094,240.42 - Step 5: Solve for x
x = 130,682,094,240.42/417,698.20 - Step 6: Final answer
x = 312,862.48
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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.