Finding the Fourth Proportional to 395,206.92, 545,386.91 and 213,918.79
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Solution
The fourth proportional to 395,206.92, 545,386.91 and 213,918.79 is: 295,208.67
Step by Step Solution
- Step 1: Write the proportion equation
395,206.92 : 545,386.91 = 213,918.79 : x - Step 2: Convert to fraction form
395,206.92/545,386.91 = 213,918.79/x - Step 3: Cross multiply
395,206.92x = 545,386.91 × 213,918.79 - Step 4: Simplify right side
395,206.92x = 116,668,507,869.04 - Step 5: Solve for x
x = 116,668,507,869.04/395,206.92 - Step 6: Final answer
x = 295,208.67
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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.