Finding the Fourth Proportional to 394,975.02, 592,349.40 and 128,758.80
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Solution
The fourth proportional to 394,975.02, 592,349.40 and 128,758.80 is: 193,101.32
Step by Step Solution
- Step 1: Write the proportion equation
394,975.02 : 592,349.40 = 128,758.80 : x - Step 2: Convert to fraction form
394,975.02/592,349.40 = 128,758.80/x - Step 3: Cross multiply
394,975.02x = 592,349.40 × 128,758.80 - Step 4: Simplify right side
394,975.02x = 76,270,197,924.72 - Step 5: Solve for x
x = 76,270,197,924.72/394,975.02 - Step 6: Final answer
x = 193,101.32
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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.