Finding the Fourth Proportional to 394,962.74, 545,047.82 and 213,674.81
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Solution
The fourth proportional to 394,962.74, 545,047.82 and 213,674.81 is: 294,870.82
Step by Step Solution
- Step 1: Write the proportion equation
394,962.74 : 545,047.82 = 213,674.81 : x - Step 2: Convert to fraction form
394,962.74/545,047.82 = 213,674.81/x - Step 3: Cross multiply
394,962.74x = 545,047.82 × 213,674.81 - Step 4: Simplify right side
394,962.74x = 116,462,985,585.80 - Step 5: Solve for x
x = 116,462,985,585.80/394,962.74 - Step 6: Final answer
x = 294,870.82
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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.