Finding the Fourth Proportional to 194,620.80, 292,046.40 and 128,252.80
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Solution
The fourth proportional to 194,620.80, 292,046.40 and 128,252.80 is: 192,455.12
Step by Step Solution
- Step 1: Write the proportion equation
194,620.80 : 292,046.40 = 128,252.80 : x - Step 2: Convert to fraction form
194,620.80/292,046.40 = 128,252.80/x - Step 3: Cross multiply
194,620.80x = 292,046.40 × 128,252.80 - Step 4: Simplify right side
194,620.80x = 37,455,768,529.92 - Step 5: Solve for x
x = 37,455,768,529.92/194,620.80 - Step 6: Final answer
x = 192,455.12
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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.