Finding the Fourth Proportional to 394,961.24, 545,045.75 and 213,673.31
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Solution
The fourth proportional to 394,961.24, 545,045.75 and 213,673.31 is: 294,868.75
Step by Step Solution
- Step 1: Write the proportion equation
394,961.24 : 545,045.75 = 213,673.31 : x - Step 2: Convert to fraction form
394,961.24/545,045.75 = 213,673.31/x - Step 3: Cross multiply
394,961.24x = 545,045.75 × 213,673.31 - Step 4: Simplify right side
394,961.24x = 116,461,725,710.34 - Step 5: Solve for x
x = 116,461,725,710.34/394,961.24 - Step 6: Final answer
x = 294,868.75
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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.