Finding the Fourth Proportional to 455,245.73, 628,239.24 and 251,296.79
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Solution
The fourth proportional to 455,245.73, 628,239.24 and 251,296.79 is: 346,789.64
Step by Step Solution
- Step 1: Write the proportion equation
455,245.73 : 628,239.24 = 251,296.79 : x - Step 2: Convert to fraction form
455,245.73/628,239.24 = 251,296.79/x - Step 3: Cross multiply
455,245.73x = 628,239.24 × 251,296.79 - Step 4: Simplify right side
455,245.73x = 157,874,504,364.04 - Step 5: Solve for x
x = 157,874,504,364.04/455,245.73 - Step 6: Final answer
x = 346,789.64
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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.