Finding the Fourth Proportional to 427,286.68, 640,929.20 and 161,106.92
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Solution
The fourth proportional to 427,286.68, 640,929.20 and 161,106.92 is: 241,660.07
Step by Step Solution
- Step 1: Write the proportion equation
427,286.68 : 640,929.20 = 161,106.92 : x - Step 2: Convert to fraction form
427,286.68/640,929.20 = 161,106.92/x - Step 3: Cross multiply
427,286.68x = 640,929.20 × 161,106.92 - Step 4: Simplify right side
427,286.68x = 103,258,129,350.06 - Step 5: Solve for x
x = 103,258,129,350.06/427,286.68 - Step 6: Final answer
x = 241,660.07
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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.