Finding the Fourth Proportional to 201,521.44, 278,070.24 and 120,931.84
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Solution
The fourth proportional to 201,521.44, 278,070.24 and 120,931.84 is: 166,868.33
Step by Step Solution
- Step 1: Write the proportion equation
201,521.44 : 278,070.24 = 120,931.84 : x - Step 2: Convert to fraction form
201,521.44/278,070.24 = 120,931.84/x - Step 3: Cross multiply
201,521.44x = 278,070.24 × 120,931.84 - Step 4: Simplify right side
201,521.44x = 33,627,545,772.44 - Step 5: Solve for x
x = 33,627,545,772.44/201,521.44 - Step 6: Final answer
x = 166,868.33
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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.