Finding the Fourth Proportional to 402,668.97, 555,683.52 and 221,383.97
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Solution
The fourth proportional to 402,668.97, 555,683.52 and 221,383.97 is: 305,510.07
Step by Step Solution
- Step 1: Write the proportion equation
402,668.97 : 555,683.52 = 221,383.97 : x - Step 2: Convert to fraction form
402,668.97/555,683.52 = 221,383.97/x - Step 3: Cross multiply
402,668.97x = 555,683.52 × 221,383.97 - Step 4: Simplify right side
402,668.97x = 123,019,423,721.17 - Step 5: Solve for x
x = 123,019,423,721.17/402,668.97 - Step 6: Final answer
x = 305,510.07
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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.